Analyze

Problem 2801

Consider the following function. f(x)={5x4 if x<2x2+5 if 2x<93 if x9f(x)=\left\{\begin{array}{rlr} 5 x-4 & \text { if } & x<2 \\ x^{2}+5 & \text { if } & 2 \leq x<9 \\ 3 & \text { if } & x \geq 9 \end{array}\right.
Which "piece(s)" should be used to find the yy-intercept?
Select all that apply. A. 3 B. 5x45 x-4 C. x2+5x^{2}+5

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Problem 2802

20. [-/2 Points]
DETAILS JMODD8 3.3.054.
Find the probability that the sum is as stated when a pair of dice is rolled. (Enter your answers as fractions.) (a) odd and doubles \square (b) odd or doubles \square

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Problem 2803

Graph the following function using the techniques of shifting, compressing, stretching, and/or reflecting. Start with the graph of the basic function shown to the right. Find the domain and range of the function. h(x)=x+5h(x)=\sqrt{x+5}
Choose the correct graph below. A. B. C. D.
Find the domain of h(x)h(x). \square (Type your answer in interval notation.) Find the range of h(x)h(x). \square (Type your answer in interval notation.)

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Problem 2804

Here are summary statistics for randomly selected weights of newborn girls: n=36,xˉ=3216.7 g, s=688.5 gn=36, \bar{x}=3216.7 \mathrm{~g}, \mathrm{~s}=688.5 \mathrm{~g}. Use a confidence level of 95%95 \% to complete parts (a) through (d) below. a. Identify the critical value tα/2t_{\alpha / 2} used for finding the margin of error. tα/2=2.03t_{\alpha / 2}=2.03 (Round to two decimal places as needed.) b. Find the margin of error. E=E= \square g (Round to one decimal place as needed.)

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Problem 2805

Graph the following function using the techniques of shifting, compressing, stretching, and/or reflecting. Start with the graph of the basic function shown to the right. Find the domain and range of the function. h(x)=x+5h(x)=\sqrt{x+5}
Choose the correct graph below. A. B. c. D.

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Problem 2806

Graph the rational function. f(x)=12x2+8x+12f(x)=\frac{-12}{x^{2}+8 x+12}
Start by drawing the vertical an

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Problem 2807

On the basis of his sale records, a salesman knows that his weekly commissions have the probabilities shown below. \begin{tabular}{|l|c|c|c|c|c|} \hline Commission & 0 & $1,000\$ 1,000 & $2,000\$ 2,000 & $3,000\$ 3,000 & $4,000\$ 4,000 \\ \hline Probability & 0.11 & 0.2 & 0.49 & 0.1 & 0.1 \\ \hline \end{tabular}
Find the salesman's expected commission. \ \square$

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Problem 2808

Here, M1,M2M_{1}, M_{2}, and M3M_{3} denote the three matrices associated with these transformations. If PP is the coordinate matrix of the original view (View 1 ) and PP^{\prime} is the coordinate matrix of the resulting image after the transformations (View 2), which of the following gives PP^{\prime} in terms of M1,M2,M3M_{1}, M_{2}, M_{3}, and PP ? [This question is based on your assigned pre-reading/prep for the upcoming Assignment] none of these M1M2(M3+P)M_{1} M_{2}\left(M_{3}+P\right) M3(M2+M1P)M_{3}\left(M_{2}+M_{1} P\right) M3M2(M1+P)M_{3} M_{2}\left(M_{1}+P\right)

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Problem 2809

Calcium is essential to tree growth. In 1990 , the concentration of calcium in precipitation in Chautauqua, New York, was 0.11 milligram per liter (mgL)\left(\frac{\mathrm{mg}}{\mathrm{L}}\right). A random sample of 8 precipitation dates in 2018 results in the following data: 0.2340.3130.1080.0650.0870.0700.2620.126\begin{array}{llllllll} 0.234 & 0.313 & 0.108 & 0.065 & 0.087 & 0.070 & 0.262 & 0.126 \end{array}
A normal probability plot suggests the data could come from a population that is normally distributed. A boxplot does not show any outliers. Does the sample evidence suggest that calcium concentrations have changed since 1990? Use the a=0.1\mathrm{a}=0.1 level of significance.
What are the null and alternative hypotheses? H0:μ=0.11H1:μ=0.11\begin{array}{l} H_{0}: \mu=0.11 \\ H_{1}: \mu=0.11 \end{array} (Type integers or decimals. Do not round.) Find the test statistic. t0=1.40(R0 imal places as needed. )t_{0}=1.40^{\circ}\left(R_{0} \quad \text { imal places as needed. }\right)
Find the P -valt P -value == \square Is there suffici \square three decimal places as needed.)
Since P -value \square α\alpha, the null hypothesis and conclude that there \square sufficient evidence that the calcium level in rainwater has changed. Clear all Check answer

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Problem 2810

Evaluate dz. z=2xy+5xyx=6,y=16,dx=0.03,dy=0.02\begin{array}{l} z=\frac{2 x}{y}+\sqrt{5 x y} \\ x=6, y=16, d x=0.03, d y=0.02 \end{array}

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Problem 2811

A math teacher claims that she has developed a review course that increases the scores of students on the math portion of a college entrance exam. Based on data from the College Board, scores are normally distributed with μ=519\mu=519. The teacher obtains a random sample of 1800 students, puts them through the review class, and finds that the mean math' score of the 1800 students is 525 with a standard deviation of 112. Complete parts (a) through (d) below.
Click the icon to view the t-Distribution Area in the Right Tail. (b) Test the hypothesis at the α=0.10\alpha=0.10 level of significance. Is a mean math score of 525 statistically significantly higher than 519 ? Conduct a hypothesis test using the P -value approach.
Find the test statistic. t0=2.27t_{0}=2.27 (Round to two decimal places as needed.) Approximate the P -value corresponding to the critical value of t . The P -value is between 0.02 and 0.01 . Is the sample mean statistically significantly higher? A. Yes, because the PP-value range is below α=0.10\alpha=0.10 B. No, because the P -value range is below α=0.10\alpha=0.10. C. Yes, because the P -value range is above α=0.10\alpha=0.10. D. No, because the P -value range is above α=0.10\alpha=0.10.

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Problem 2812

Suppose the birth weights of full-term babies are normally distributed with mean 3250 grams and standard deviation σ=480\sigma=480 grams. Complete parts (a) through (c) below. (4) n 17 (c) Suppose the area under the normal curve to the riaht of X=4210X=4210 is 0.0228 . Provide an interpretation of this result. Select the correct choice below and fill in the answer box to complete your choice. (Type a whole number.) A. The probability is 0.0228 that the birth weight of a randomly chosen full-term baby in this population is less than \square grams. B. The probability is 00228 that the birth weight of a randomly chosen full-term baby in this population is more than \square grams. solve this View an example Get more help - Clear all Check answer

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Problem 2813

\begin{problem} A math teacher claims that she has developed a review course that increases the scores of students on the math portion of a college entrance exam. Based on data from the College Board, scores are normally distributed with μ=519\mu=519. The teacher obtains a random sample of 1800 students, puts them through the review class, and finds that the mean math score of the 1800 students is 525 with a standard deviation of 112. Complete parts (a) through (d) below.
(c) Do you think that a mean math score of 525 versus 519 will affect the decision of a school admissions administrator? In other words, does the increase in the score have any practical significance? \begin{enumerate} \item[A.] No, because the score became only 1.16%1.16\% greater. \item[B.] No, because every increase in score is practically significant. \item[C.] Yes, because the score became more than 116%116\% greater. \item[D.] Yes, because it is statistically significant. \end{enumerate}
(d) Test the hypothesis with n=375n=375 students. Assume that the sample mean is still 525 and the sample standard deviation is still 112. Is a sample mean of 525 significantly more than 519 at the α=0.15\alpha=0.15 significance level?
Find the test statistic t0=1.04t_0 = 1.04 (Round to two decimal places).
Approximate the P-value using the P-value approach.
The P-value is between: \begin{enumerate} \item[1.] 0.15 and 0.10 \item[2.] 0.005 and 0.0025 \item[3.] 0.001 and 0.0005 \item[4.] 0.20 and 0.15 \end{enumerate} \end{problem}

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Problem 2814

Translate the following argument into symbolic form. Then determine whether the argument is valid or invalid. The computer is thinking but the computer is not working. If the computer is working then the computer is thinking. Therefore, the computer is working.
Write the statement in symbolic form.

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Problem 2815

State the appropriate null and alternate hypotheses. H0:p1=p2H1:p2<p1\begin{array}{l} H_{0}: p_{1}=p_{2} \\ H_{1}: p_{2}<p_{1} \end{array}
This hypothesis test is a right-tailed \nabla test.
Part 2 of 4
Find the PP-value. Round the answer to four decimal places. P-value =0.1446P \text {-value }=0.1446
Part: 2/42 / 4
Part 3 of 4
Determine whether to reject H0H_{0}. (Choose one) \mathbf{\nabla} the null hypothesis H0H_{0}. Skip Part Check Save For Later Submit Assignmen - 2024 McGraw Hill LLC. All Rights Reserved. Terms of Use I Privacy Center Accessib MacBook Pro

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Problem 2816

Determine whether the lines are parallel perpendicular or neither. Next, write the slope of each equation. y=abx+cdxmy=n\begin{array}{c} y=\frac{a}{b} x+c \\ d x-m y=n \end{array} a=4b=6c=10d=12 m=8n=5a=4 \quad b=6 \quad c=-10 \quad d=12 \mathrm{~m}=-8 \quad \mathrm{n}=-5 y=46x10y=\frac{4}{6} x-10 12x+8y=512 x+8 y=-5

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Problem 2817

Sistemi: a) {x=y+1{1+2x=y\begin{array}{l} \{x=y+1 \\ \{1+2 x=y \end{array}

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Problem 2818

Use the remainder theorem to find P(1)P(1) for P(x)=2x4+4x3+4x28P(x)=-2 x^{4}+4 x^{3}+4 x^{2}-8. Specifically, give the quotient and the remainder for the associated division and the value of P(1)P(1).
Quotient = \square
Remainder == \square P(1)=P(1)= \square

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Problem 2819

Is there a doctor in the house? A market research firm reported the mean annual earnings of all family practitioners in the United States was $178,258\$ 178,258. A random sample of 52 family practitioners in Los Angeles had mean earnings of xˉ=$193,130\bar{x}=\$ 193,130 with a standard deviation of $42,047\$ 42,047. Do the data provide sufficient evidence to conclude that the mean salary for family practitioners in Los Angeles is greater than the national average? Use the α=0.10\alpha=0.10 level of significance and the PP-value method with the TI-84 Plus calculator.
Part 1 of 5 (a) State the appropriate null and alternate hypotheses. H0:μ=178,258H1:μ>178,258\begin{array}{l} H_{0}: \mu=178,258 \\ H_{1}: \mu>178,258 \end{array}
This hypothesis test is a \square right-tailed test.
Part 2 of 5 (b) Compute the value of the test statistic. Round the answer to two decimal places. t=2.55t=2.55
Part: 2/52 / 5
Part 3 of 5 (c) Compute the PP-value. Round the answer to at least four decimal places. P-value =P \text {-value }= \square Start over

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Problem 2820

```latex State the conclusion. Choose the correct answer below.
A. Reject H0\mathrm{H}_{0}. There is sufficient evidence to support the claim that fewer than half of all teenagers in the population feel that grades are the greatest source of pressure.
B. Reject H0\mathrm{H}_{0}. There is insufficient evidence to support the claim that fewer than half of all teenagers in the population feel that grades are the greatest source of pressure.
C. Do not reject H0\mathrm{H}_{0}. There is sufficient evidence to support the claim that fewer than half of all teenagers in the population feel that grades are the greatest source of pressure.
D. Do not reject H0\mathrm{H}_{0}. There is insufficient evidence to support the claim that fewer than half of all teenagers in the population feel that grades are the greatest source of pressure.
The user took a picture with their phone and the text was extracted above. The user then had a dialogue with an AI Assistant to help clarify the instructions.
Dialogue Transcript:
Hello! It looks like you've captured a math problem related to hypothesis testing. However, the critical information needed to choose the correct conclusion is missing. Could you please provide the test statistic, p-value, or any significance level used for this hypothesis test? With that information, I can help determine the correct conclusion for the problem.
P value= 0.0000 ```

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Problem 2821

4. a. Pintá la gráfica siguiendo las consignas. \checkmark De azul la parte creciente. \checkmark De rojo la constante. \checkmark De verde la decreciente.
Completá los puntos del gráfico. b. (4; \square d. (6(-6; \square e. (6(6; \square f. (3;(3 ; \square c. (0(0; \square g. (7(-7; \square
Colocá CR (creciente), DE (decreciente) o CO (constante) según corresponda. h. 1<x<0-1<x<0 \square j. 3<x<2-3<x<-2 \square L. 2<x<32<x<3 \square n. 5<x<65<x<6 \square i. 6<x<76<x<7 \square k. 0<x<10<x<1 \square m. 7<x<87<x<8 \square o. 6<x<5-6<x<-5 \square Escribí los intervalos donde la gráfica es p. creciente: q. decreciente: r. constante:

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Problem 2822

P-value =0.0000=0.0000 (Round to three decimal places as needed.) What is the conclusion about the null hypothesis?
A. Fail to reject the null hypothesis because the PP-value is less than or equal to the significance level, α\alpha.
B. Reject the null hypothesis because the PP-value is greater than the significance level, α\alpha. C. Reject the null hypothesis because the PP-value is less than or equal to the significance level, α\alpha. D. Fail to reject the null hypothesis because the PP-value is greater than the significance level, α\alpha.

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Problem 2823

Zappos is an online retailer based in Nevada and employs 1,500 employees. One of their competitors, Amazon.com, would like to test the hypothesis that the average age of a Zappos employee is less than 36 years old. A random sample of 22 Zappos employees was found to have an average age of 33.9 years. The standard deviation for this sample was 4.1 years. Amazon would like to set a=0.025a=0.025. The conclusion for this hypothesis test would be that because the test statistic is less than the critical value, we cannot conclude that the average age of Zappos employees is less than 36 years old. more than the critical value, we cannot conclude that the average age of Zappos employees is less than 36 years old. less than the critical value, we can conclude that the average age of Zappos employees is less than 36 years old. more than the critical value, we can conclude that the average age of Zappos employees is less than 36 years old.

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Problem 2824

Shingles is a painful, but not life-threatening, skin rash. A doctor has discovered a new ointment that he believes will be more effective in the treatment of shingles than the current medication. Eight patients are available to participate in the initial trials of this new ointment. It turns out that the new ointment does appear to be effective, but it is more effective for younger patients. A second study is planned, and many more patients are available. Based on the knowledge gained from the first study, which method is best to use in the second study? Use age as the response variable Decide which patients receive the new ointment using a multistage sample Use treatment and control groups and also ensure that the patients in the two groups are similar in terms of age Design the second study in the same way as the first

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Problem 2825

Consider the following function. h(z)=1z+5z2 for z>0h(z)=\frac{1}{z}+5 z^{2} \text { for } z>0
Select the exact global maximum and minimum values of the function. The global maximum of h(z)h(z) on z>0z>0 is 110+125\frac{1}{10}+125, the global minimum is 103+543\sqrt[3]{10}+\sqrt[3]{\frac{5}{4}} The global maximum of h(z)h(z) on z>0z>0 does not exist, the global minimum is 103+523\sqrt[3]{10}+\sqrt[3]{\frac{5}{2}} The global maximum of h(z)h(z) on z>0z>0 is 110+125\frac{1}{10}+125, the global minimum is 53+543\sqrt[3]{5}+\sqrt[3]{\frac{5}{4}} The global maximum of h(z)h(z) on z>0z>0 does not exist, the global minimum is 103+543\sqrt[3]{10}+\sqrt[3]{\frac{5}{4}} The global maximum of h(z)h(z) on z>0z>0 is 15+125\frac{1}{5}+125, the global minimum is 53+543\sqrt[3]{5}+\sqrt[3]{\frac{5}{4}} eTextbook and Media

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Problem 2826

Anna Washburn 11/17/24 4:32 PM Question 8 of 8 This quiz: 8 point(s) possible This question: 1 point(s) possible Submit quiz
Conduct a full hypothesis test and determine if the given claim is supported or not supported at the 0.05 significance level. Round all amounts and standard scores to two decimal places. A researcher claims that the amounts of acetaminophen in a certain brand of cold tablets have a mean different from the 600 milligrams claimed by the manufacturer. The mean acetaminophen content ff a random sample of 46 tablets is 603.3 milligrams. Test whether the claim that the mean amount of acetaminophen is different from 600 milligrams is supported or not supported. Assume that the population standard deviation is 4.9 milligrams. not supported supported

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Problem 2827

A rock is thrown into a still pond and causes a circular ripple. If the radius of the ripple is increasing at a rate of 4 feet per second, how fast is the circumference changing when the radius is 15 feet?
Change in circumference ==

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Problem 2828

Use derivatives to find the critical points and inflection points. f(x)=5x6lnxf(x)=5 x-6 \ln x
Enter the exact answers in increasing order. If there is only one critical point, enter NA in the second area. If there are no inflection points, enter NA.
Critical points: x=x=\begin{array}{l} x=\square \\ x=\square \end{array}
Inflection point: x=x= \square

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Problem 2829

8. Analyze a Problem Find the
1 missing digits.

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Problem 2830

Section 3.4 - Graphing a Parabola of the Form y=a(xh)2y=a(x-h)^{2}
5. Find a third point on the quadratic function that has the indicated vertex, and whose graph passes through given point. a) vertex (3,2)(3,2), point (5,7)(5,7)

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Problem 2831

7. Mit Hilfe einer Untersumme UnU_{n} mit nn Rechteckstreifen der Breite Δx\Delta x kann der Flächeninhalt zwischen dem Graphen einer Funktion und der xx-Achse abgeschätzt werden. In der Abbildung sind der Graph einer Funktion ff und eine Untersumme U5U_{5} dargestellt. Kreuze die beiden zutreffenden Aussagen an! \begin{tabular}{|l|c|} \hline 0af(x)dx=U5\int_{0}^{a} f(x) d x=U_{5} & \square \\ \hline \begin{tabular}{l} Je kleiner nn, umso kleiner ist der Unterschied zwischen der Untersumme und \\ dem Flächeninhalt zwischen der xx-Achse und Funktionsgraph im Intervall [0;a][0 ; a]. \end{tabular} & \square \\ \hlineΔx=na\Delta x=\frac{n}{a} & \square \\ \hline \begin{tabular}{l} Die dargestellte Untersumme ist kleiner als der Flächeninhalt, den die Kurve im \\ Intervall [0;a][0 ; a] mit der xx-Achse einschließt. \end{tabular} & \square \\ \hline Für wachsendes nn nähert sich die Untersumme dem Wert 0af(x)dx\int_{0}^{a} f(x) d x. & \square \\ \hline \end{tabular}

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Problem 2832

Let u,w,v1,v2u, w, v_{1}, v_{2}, and v3v_{3} be the vectors in R4\mathbb{R}^{4} defined by u=[17121610]w=[29122914]v1=[72619]v2=[219118]v3=[68111]u=\left[\begin{array}{l} 17 \\ 12 \\ 16 \\ 10 \end{array}\right] \quad w=\left[\begin{array}{c} 29 \\ 12 \\ -29 \\ 14 \end{array}\right] \quad v_{1}=\left[\begin{array}{c} 7 \\ -2 \\ 6 \\ -19 \end{array}\right] \quad v_{2}=\left[\begin{array}{c} -2 \\ -19 \\ 1 \\ -18 \end{array}\right] \quad v_{3}=\left[\begin{array}{c} 6 \\ -8 \\ -11 \\ -1 \end{array}\right] (a) Is uspan{v1,v2,v3}u \in \operatorname{span}\left\{v_{1}, v_{2}, v_{3}\right\} ? Write all zeros if it is not in the span or write zero as a non-trivial (not all zero coefficients) linear combination of u1,v1,v2u_{1}, v_{1}, v_{2}, and v3v_{3} if uu is in the span. 0=u+v1+v2+v30=\square u+\square v_{1}+\square v_{2}+\square v_{3} (b) Is wspan{v1,v2,v3}w \in \operatorname{span}\left\{v_{1}, v_{2}, v_{3}\right\} ? Write all zeros if it is not or if it is in the span write zero as a non-trivial (not all zero coefficients) linear combination of ww, v1,v2v_{1}, v_{2}, and v3v_{3} if ww is in the span. 0=w+v1+v2+v30=\square w+\square v_{1}+\square v_{2}+\square v_{3} (c) Type the dimension of span{v1,v2,v3,u}\operatorname{span}\left\{v_{1}, v_{2}, v_{3}, u\right\} : \square

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Problem 2833

One year Chris had the lowest ERA (earned-run average, mean number of runs yielded per nine innings pitched) of any male pitcher at his school, with an ERA of 3.21. Also, Nina had the lowest ERA of any female pitcher at the school with an ERA of 2.51. For the males, the mean ERA was 5.015 and the standard deviation was 0.653 . For the females, the mean ERA was 4.539 and the standard deviation was 0.835 . Find their respective zz-scores. Which player had the better year relative to their peers, Chris or Nina? (Note: In general, the lower the ERA, the better the pitcher.)
Chris had an ERA with a z-score of \square \square. Nina had an ERA with a z-score of \square . (Round to two decimal places as needed.) Which player had a better year in comparison with their peers? A. Nina had a better year because of a lower zz-score. B. Nina had a better year because of a higher zz-score. C. Chris had a better year because of a lower zz-score. D. Chris had a better year because of a higher zz-score.

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Problem 2834

```latex \begin{tabular}{l|l|l} \text{multi-step equation and explain.} & \\ \hline \text{A. 1} & \begin{tabular}{l} \text{I can solve linear equations with rational} \\ \text{coefficients} \end{tabular} & \text{8. EE. 7} \end{tabular}

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Problem 2835

16. Gegeben ist die Funktion E[0;10]R.E(t)E[0 ; 10] \mapsto \mathbb{R} . E(t) beschreibt die Anzahl der an einem Grippevirus erkrankten Einwohner in dieser Stadt zum Zeitpunkt tt (in Tagen). Wofür steht der Ausdruck E(6)E(3)E(3)100?\frac{E(6)-E(3)}{E(3)} \cdot 100 ? Kreuze die zutreffende Antwort an! [1 aus 6] \begin{tabular}{|l|c|} \hline Der Ausdruck beschreibt die mittlere Änderungsrate von EE in [3;6][3 ; 6]. & \square \\ \hline \begin{tabular}{l} Der Ausdruck gibt den prozentuellen Zuwachs an Erkrankungen vom 3. bis zum \\
6. Tag an. \end{tabular} & \square \\ \hline \begin{tabular}{l} Der Ausdruck beschreibt den durchschnittlichen Zuwachs an Erkrankungen pro \\ Tag in [3;6][3 ; 6]. \end{tabular} & \square \\ \hline Der Ausdruck beschreibt den absoluten Zuwachs der Erkrankten in [3;6][3 ; 6]. & \square \\ \hline Der Ausdruck gibt die Anzahl der neu Erkrankten am 6. Tag an. & \square \\ \hline Der Ausdruck gibt die prozentuelle Änderung von E pro Tag an. & \square \\ \hline \end{tabular}

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Problem 2836

Does the right Riemann sum underestimate or overestimate the area of the region under the graph of a positive decreasing function? Explain.
Choose the correct answer below. A. Overestimate; the rectangles do not fit under the curve. B. Underestimate; the rectangles do not fit under the curve. C. Overestimate; the rectangles all fit under the curve. D. Underestimate; the rectangles all fit under the curve.

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Problem 2837

workld=68561434 Part 2 of 3 3.4.13 Use the following function to answer parts a through c. f(x) = x²+6x² - 182x-187 C po SOF a. List all rational zeros that are possible according to the Rational Zero Theorem. ±1, ±11, ± 17, ± 187 (Type an integer or a simplified fraction. Use a comma to separate answers as needed. Type each ans b. Use synthetic division to test several possible rational zeros in order to identify one actual zero. (Simplify your answer.) One rational zero of the given function is

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Problem 2838

f(x)=3x3x23x+2f(x)=\frac{3 x-3}{x^{2}-3 x+2}
Answer Attempt 1 out of 2
Horizontal Asymptote: y=y= \square No horizontal asymptote
Vertical Asymptote: x=x= \square No vertical asymptote xx-Intercept: \square , 0) No xx-intercept \qquad yy-Intercept: (0, \square ) No yy-intercept
Hole: \square \square No hole

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Problem 2839

Learn with an example or Watch a video
Graph this line: y6=2(x+4)y-6=2(x+4)
Click to select points on the graph. Submit

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Problem 2840

f(x)=x2162x216x+32f(x)=\frac{x^{2}-16}{2 x^{2}-16 x+32}
Answer Attempt 1 out of 2
Horizontal Asymptote: y=y= \square No horizontal asymptote \square No vertical asymptote
Vertical Asymptote: x=x= No vertical asymptote xx-Intercept: \square ,0) \square yy-Intercept: (0, \square No yy-intercept \square Hole: \square \square No hole

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Problem 2841

(6\left(\begin{array}{c} 6 \\ \uparrow \\ \uparrow \end{array}\right.
11. The " 6 " in place PP in the numeral above has a value how many times the value of the " 6 " in place QQ ? (A) 10,000 (B) 1,000 (C) 100 (D) 10 (E) 1

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Problem 2842

Part 1 of 3 points Points: 0 of 1
Write the converse, inverse, and contrapositive of the statement. If you eat you" vegetables, then you can have dessert.
Identify the converse statement.
A. If you did not eat your vegetables, then you cannot have dessert. B. If you cannot have dessert, then you eat your vegetables. C. If you can have dessert, then you eat your vegetables. D. If you cannot have dessert, then you did not eat your vegetables. View an example Get more help

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Problem 2843

8
Determine the slope of the line above.

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Problem 2844

Given below are the number of successes and sample size for a simple random sample from a population. x=7,n=50,99% level x=7, n=50,99 \% \text { level } a. Determine the sample proportion. b. Decide whether using the one-proportion z-interval procedure is appropriate. c. If appropriate, use the one-proportion z-interval procedure to find the confidence interval at the specified confidence level. d. If appropriate, find the margin of error for the estimate of pp and express the confidence interval in terms of the sample proportion and the margin of error. a. p^=0.14\hat{p}=0.14 (Type an integer or a decimal. Do not round.) b. Is the one-proportion z-interval procedure appropriate? Select all that apply. A. The procedure is appropriate because the necessary conditions are satisfied. B. The procedure is not appropriate because xx is less than 5 . C. The procedure is not appropriate because nxn-x is less than 5 . D. The procedure is not appropriate because the sample is not a simple ramom sample. c. Select the correct choice below and, if necessary, fill in the answer boxes within your choice. A. The 99%99 \% confidence interval is from .0135 to .2665 . (Round to three decimal places as needed. Use ascending order.) B. The one-proportion z-interval procedure is not appropriate.

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Problem 2845

Write the converse, inverse, and contrapositive of the statement. If you eat you'vegetables, then you can have dessert. B. If you cannot have dessert, then you eat your vegetables. C. If you can have dessert, then you eat your vegetables. D. If you cannot have dessert, then you did not eat your vegetables.
Identify the inverse statement. A. If you can have dessert, then you eat your vegetables. B. If you cannot have dessert, then you eat your vegetables. C. If you cannot have dessert, then you did not eat your vegetables. D. If you did not eat your vegetables, then you cannot have dessert.
Identify the contrapositive statement.
A. If you cannot have dessert, then you eat your vegetables. B. If you can have dessert, then you eat your vegetables. C. If you did not eat your vegetables, then you cannot have dessert. D. If you cannot have dessert, then you did not eat your vegetables. View an example Get more help - Clear all Question 17 (0/1) Ques

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Problem 2846

h(z)=1z+9z2 for z>0h(z)=\frac{1}{z}+9 z^{2} \text { for } z>0
Select the exact global maximum and minimum values of the function. The global maximum of h(z)h(z) on z>0z>0 does not exist, the global minimum is 183+943\sqrt[3]{18}+\sqrt[3]{\frac{9}{4}} The global maximum of h(z)h(z) on z>0z>0 is 19+729\frac{1}{9}+729, the global minimum is 93+943\sqrt[3]{9}+\sqrt[3]{\frac{9}{4}} The global maximum of h(z)h(z) on z>0z>0 is 118+729\frac{1}{18}+729, the global minimum is 183+943\sqrt[3]{18}+\sqrt[3]{\frac{9}{4}} The global maximum of h(z)h(z) on z>0z>0 does not exist, the global minimum is 183+923\sqrt[3]{18}+\sqrt[3]{\frac{9}{2}} The global maximum of h(z)h(z) on z>0z>0 is 118+729\frac{1}{18}+729, the global minimum is 93+943\sqrt[3]{9}+\sqrt[3]{\frac{9}{4}}

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Problem 2847

2. [/2[-/ 2 Points]
DETAILS MY NOTES MENDSTAT15 8.2.010. ASK YOUR TEACHER
PRACTICE ANOTHER Calculate the 95%95 \% margin of error in estimating a population mean μ\mu for the following values. (Round your answer to three decimal places.) n=7,000,s2=64n=7,000, s^{2}=64 \qquad Consider that for s2=64s^{2}=64 and sample sizes of 50,100, and 500 the margins of error are 2.217, 1.568, and 0.701 respectively. Comment on how an increased sample size affects the margin of error. As the sample size increases the margin of error decreases. As the sample size increases the margin of error remains relatively constant. As the sample size increases the margin of error also increases. You may need to use the appropriate appendix table or technology to answer this question. Need Help? Read it Submit Answer
3. [-/1 Points ]]

DETAILS MY NOTES MENDSTAT15 8.3.003.S. ASK YOUR TEACHER PRACTICE ANOTHER

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Problem 2848

Minga f(x)=2x+2x21f(x)=\frac{2 x+2}{x^{2}-1}
Answer Attempt 1 out of 2
Horizontal Asymptote: y=y= \square No horizontal asymptote
Vertical Asymptote: x=x= \square No vertical asymptote xx-Intercept: ( \square , 0) No xx-intercept \qquad yy-Intercept: ( 0, \square ) \qquad No yy-intercept
Hole: \square , \square No hole

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Problem 2849

The function f(x)=9x+7x1f(x)=9 x+7 x^{-1} has one local minimum and one local maximum. This function has a local maximum at x=x= \square with value \square and a local minimum at x=x= \square with value \square

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Problem 2850

f(x)=2x+2x21f(x)=\frac{2 x+2}{x^{2}-1}
Answer Attempt 1 out of 2
Horizontal Asymptote: y=y= \square No horizontal asymptote \square Vertical Asymptote: x=x= No vertical asymptote \qquad xx-Intercept: \square ,0) \square No xx-intercept yy-Intercept: (0, \square ) No yy-intercept
Hole: \square , \square No hole \square

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Problem 2851

In a multiple linear regression of E(YX1=x1,X2=x2)=a+b1x1+b2x2E\left(Y \mid X_{1}=x_{1}, X_{2}=x_{2}\right)=a+b_{1} x_{1}+b_{2} x_{2}, we get a table of coefficients like this:
Coefficient Value a 2.02.0 b1b_{1} -1 b2b_{2} 0.5
Consider two groups that have the following characteristics: - The same values of X2X_{2} - Group A has X1=2X_{1}=2 - Group B has X1=1X_{1}=1
Let E(YA)E(Y \mid A) be the average of YY within group A, and E(YB)E(Y \mid B) be the average of YY within group B.
According to this model, which group has the larger conditional mean of YY ? Group A Group B They are the same. We cannot answer without knowing the value of X2X_{2}.

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Problem 2852

Plot all of the existing five features of the following rational function (some may not be needed). If you get a fraction or decimal then plot as close to the true location as possible. f(x)=3x9x22x15f(x)=\frac{-3 x-9}{x^{2}-2 x-15}
Plot Rational Function Vertical Asymptote Horizontal Asymptote x-Intercept y-Intercept Hole

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Problem 2853

2. Refer to the following preference schedule to answer parts (a) - (f). Note: See attached page for additional copies of the table. ( 36pts436 \mathrm{pts}-4 pts for each part) \begin{tabular}{|r|c|c|c|c|} \hline First & A & B & D & C \\ \hline Second & B & D & C & B \\ \hline Third & C & A & B & A \\ \hline Forth & D & C & A & D \\ \hline Number of Voters & 30 & 20 & 25 & 10 \\ \hline \end{tabular} a. How many votes were cast? \qquad b. How many votes are needed to receive a majority? \qquad c. Find the plurality winner: \qquad d. Did the plurality winner also receive a majority? \qquad Show work to support the selection process below. e. Find the winner by a single runoff of the top two candidates: \qquad Show work to support the selection process below. f. Find the winner by a sequential runoff: \qquad Show work to support the selection process below. g. Find the winner by a Borda count: \qquad Show work to support the selection process below. h. Find the winner, if any, by the method of pairwise comparisons: \qquad Show work to support the selection process below.

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Problem 2854

4 Which situation is best represented by the inequality 12x+7010x+8012 x+70 \geq 10 x+80 ? (F) Cell phone company A charges an $80\$ 80 deposit and $10\$ 10 each month for unlimited service. Cell phone company B charges a $70\$ 70 deposit and $12\$ 12 each month for unlimited service. After how many months, xx, will cell phone company A cost more than cell phone company B? G Caroline receives $80\$ 80 for her birthday and earns $10\$ 10 each time she babysits. Addison has saved $70\$ 70 and earns $12\$ 12 each time she babysits. How many times must the girls babysit, xx, so that Addison has at least as much money as Caroline? H The science club plans a field trîp. A trip to an observatory will cost $80\$ 80 for gas plus a $10\$ 10 entrance fee per member. A trip to a planetarium will cost $70\$ 70 for gas plus a $12\$ 12 entrance fee per member. How many miles, xx, can the science club travel so that the observatory trip is less expensive than the trip to the planetarium? J.Marco wants to rent a drum set. At Music World, the cost to rent drums is $12\$ 12 per month plus an $80\$ 80 deposit. Instrumental Music rents drums for $10\$ 10 per month with a $70\$ 70 deposit. How many months, xx, can Marco rent drums from Music World and pay less than he will at Instrumental Music?

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Problem 2855

Listen
Determine if the augmented matrix is in row echelon form. [171033]\left[\begin{array}{cccc} 1 & 7 & \vdots & 1 \\ 0 & 3 & \vdots & -3 \end{array}\right] yes no
If not, use elementary row operations to write it in row echelon form. If the matrix is in row echelon form, then leave this matri) blank. \square \square \square \square \square \square ]] Previous 36 37
38 39 40 41 42 43 44 45 Next Support CaleChat

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Problem 2856

2. Find the domain of the function f(x)=x21x29f(x)=\frac{x^{2}-1}{x^{2}-9}.
Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice. A. The domain is {x\{x \mid \qquad \}. (Simplify your answer. Type an inequality. Use a comma to separate answers as needed.) B. The domain is {xx\{x \mid x \neq \qquad 3. (Simplify your answer. Use a comma to separate answers as needed.) C. The domain is {xx\{x \mid x \leq \qquad , xx \neq \qquad \}. (Simplify your answer. Use a comma to separate answers as needed.) D. The domain is {xx\{x \mid x \geq \qquad , xx \neq \qquad \}. (Simplify your answer. Use a comma to separate answers as needed.) E. The domain is the set of all real numbers.

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Problem 2857

Determine the signs (positive, negative, or zero) of y=f(x)y=f(x) (shown in the graph), f(x)f^{\prime}(x), and f(x)f^{\prime \prime}(x) when x=1x=1.
The sign of f(1)f(1) is Select an answer vv The sign of f(1)f^{\prime}(1) is Select an answer \vee The sign of f(1)f^{\prime \prime}(1) is Select an answer vv

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Problem 2858

```latex Use the accompanying figure to complete parts (a) and (b).
a. What is the percentage difference in earnings for men with a bachelor's degree compared to women with a bachelor's degree?
Men earn \square \% \square (Type an integer or decimal rounded to the nearest tenth as needed.)
b. What is the percentage difference in earnings for men with a professional degree (such as an M.D. or J.D.) compared to women with a professional degree?
Men earn \square \% \square (Type an integer or decimal rounded to the nearest tenth as needed.)
The user took a picture with their phone and the text was extracted above. The user then had a dialogue with an AI Assistant to help clarify the instructions.
Dialogue Transcript:
It seems like there is some missing information needed to solve your problem, specifically the actual earnings figures for men and women with bachelor's and professional degrees. Could you please provide those figures or any additional details that can help in calculating the percentage differences? Once I have those details, I'll be able to assist you further!
Extracted text from attached image: Median Annual Earnings (2019) of Full-Time Workers Ages 25 and Up, by Educational Attainment and Gender

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Problem 2859

Given the function g(x)=6x3+18x2144xg(x)=6 x^{3}+18 x^{2}-144 x, find the first derivative, g(x)g^{\prime}(x). g(x)=g^{\prime}(x)= \square Notice that g(x)=0g^{\prime}(x)=0 when x=4x=-4, that is, g(4)=0g^{\prime}(-4)=0. Now, we want to know whether there is a local minimum or local maximum at x=4x=-4, so we will use the second derivative test. Find the second derivative, g(x)g^{\prime \prime}(x). g(x)=g^{\prime \prime}(x)= \square Evaluate g(4)g^{\prime \prime}(-4). g(4)=g^{\prime \prime}(-4)= \square Based on the sign of this number, does this mean the graph of g(x)g(x) is concave up or concave down at x=4x=-4 ? At x=4x=-4 the graph of g(x)g(x) is Select an answer vv Based on the concavity of g(x)g(x) at x=4x=-4, does this mean that there is a local minimum or local maximum at x=4x=-4 ? At x=4x=-4 there is a local Select an answer \checkmark

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Problem 2860

SAT scores are normally distributed with a mean of 1,500 and a standard deviation of 300 . An administrator at a college is interested in estimating the average SAT score of first-year students. If the administrator would like to limit the margin of error of the 85%85 \% confidence interval to 5 points, how many students should the administrator sample? Make sure to give a whole number answer.

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Problem 2861

t=18\mathrm{t}=18 days? Answer in appropriate units.

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Problem 2862

Evaluation \& Substitution
The marginal cost (dollars) of printing a poster when xx posters have been printed is dcdx=1x45\frac{d c}{d x}=\frac{1}{\sqrt[5]{x^{4}}}. Find c(160)c(13)c(160)-c(13), the cost of printing posters 14 through 160 .
The cost of printing posters 14 through 160 is $\$ \square (Round to the nearest cent.)

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Problem 2863

2. Let S(t)=11+etS(t)=\frac{1}{1+e^{-t}}. a. Find S(t)S^{\prime}(t). Show your work completely to justify your response. b. Which of the following equations hold true? Explain your thinking fully. (Note: Only one equation is true.) 1) S(t)=S(t)S^{\prime}(t)=S(t) 2) S(t)=(S(f))2S^{\prime}(t)=(S(f))^{2} 3) S(t)=S(t)(1S(t))S^{\prime}(t)=S(t)(1-S(t)) 4) S(t)=S(t)S^{\prime}(t)=-S(-t)
Note: The function S(f)S(f) is called the "Sigmoid activation function" and is extremely important in machine learning and artificial intelligence.

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Problem 2864

Penelope needs to hire a video production team to create a video for a product launch in 4 weeks. Penelope gathers this information about potential production teams.
Which company should Penelope eliminate? A) Videos R Us B) Smart Vids C) Professional Productions D) Cam Action \begin{tabular}{|c|c|c|c|c|} \hline Company & Price & \begin{tabular}{c} Time to \\ Completion \end{tabular} & \begin{tabular}{c} Previous \\ Partner? \end{tabular} & \begin{tabular}{c} Service \\ Rating \end{tabular} \\ \hline Videos R Us & $3,850\$ 3,850 & 2 weeks & No & A- \\ \hline Smart Vids & $5,250\$ 5,250 & 232-3 weeks & Yes & B+ \\ \hline Professional Productions & $4,500\$ 4,500 & 5 weeks & Yes & B \\ \hline Cam Action & $5,000\$ 5,000 & 3 weeks & No & C + \\ \hline \end{tabular}

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Problem 2865

Find the zeros for the polynomial function and give the multiplicity for each zero. State whether the graph crosses the x-axis or touches the x-axis and turns around at each zero. f(x)=x3+3x24x12f(x)=x^{3}+3 x^{2}-4 x-12
Determine the multiplicities of the zero(s), if they exist. Select the correct choice below and, if necessary, fill in the answer box(es) within your choice. A. There is one zero. The multiplicity of the zero is \square I. (Simplify your answer.) B. There are three zeros. The multiplicity of the smallest zero is 1. . The multiplicity of the largest zero is 1^\hat{1}. The multiplicity of the other zero is 1 . (Simplify your answers.), C. There are two zeros. The multiplicity of the smallest zero is \square . The multiplicity of the largest zero is \square . (Simplify your answers.) Determine the behavior of the function at each zero. Select the correct choice below and, if necessary, fill in the answer boxes within your choice. A. The graph crosses the xx-axis at x=x= \square . The graph touches the xx-axis and turns around at x=x= \square . (Type integers or decimals. Simplify your answers. Use a comma to separate answers as needed.) B. The graph touches the xx-axis and turns around at all zeros. C. The graph crosses the xx-axis at all zeros. Get more help - Clear all Skill builder Check answe

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Problem 2866

This is the only question in this section.
Question Watch Video Show Examples
What is the intermediate step in the form (x+a)2=b(x+a)^{2}=b as a result of completing the square for the following equation? 4x2+48x=2884 x^{2}+48 x=288

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Problem 2867

Unit 2 Assi
Convert the following expressions between exponential and logarithmic form. a. 2401=742401=74 [1 mark] b. a=logbc[1a=\log _{b} c[1 mark]

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Problem 2868

ㅇ webassign.net/web/Student/Assignment-Responses/submit?dep=34800833\&tags=autosave\#question3716073_6
7. [0/1 Points]

DETAILS MY NOTES TANAPCALC10 6.5.051. PREVIOUS ANSWERS PRACTICE ANOTHER Cell Phone Ad Spending A certain industry's ad spending between 2005(t=1)2005(t=1) and 2011(t=7)2011(t=7) is projected to be S(t)=0.88t0.94(1t7)S(t)=0.88 t^{0.94} \quad(1 \leq t \leq 7) where S(t)S(t) is measured in billions of dollars and tt is measured in years. What is the projected average spending per year on these ads between 2005 and 2011 ? (Round your answer to two decimal places.)

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Problem 2869

Use a CALCULATOR to complete the homeworkl
1. Select all the equations that have 2 solutions a. (x+3)2=9x+3=\sqrt{(x+3)^{2}}=\sqrt{9} \quad x+3= b. (x5)2=5(x-5)^{2}=-5 c. (x+2)26=0(x+2)^{2}-6=0 d. (x9)2+25=0(x-9)^{2}+25=0 e. (x+10)2=1(x+10)^{2}=1 f. (x8)2=0(x-8)^{2}=0 g. 5=(x+1)(x+1)5=(x+1)(x+1)

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Problem 2870

How many σ\sigma and π\pi bonds are in this molecule?

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Problem 2871

Use Descartes's Rule of Signs to determine the possible numbers of positive and negative real zeros of f(x)=9x47x34x26x+7f(x)=9 x^{4}-7 x^{3}-4 x^{2}-6 x+7.
What is the possible number of positive real zeros? \square (Use a comma to separate answers as needed.)

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Problem 2872

```latex Sonja et Myron discutent de ce modèle à carreaux algébriques.
Selon Sonja, le modèle «représente l'expression 3x2+x+23x^{2}+x+2. Myron croit plutôt qu'il «représente l'expression 3x2x23x^{2}-x-2. Qui a raison? Comment le sais-tu?
Le modèle est composé de trois carrés colorés, un rectangle étroit et long non coloré, et deux petits carrés non colorés. ```

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Problem 2873

For the digraph shown to the right, complete parts (a) through (e) below. (a) Find the indegree and outdegree of CC. (b) Find the indegree and outdegree of DD. (c) Find the indegree and outdegree of E . (d) Find the sum of the indegrees of all vertices. (e) Find the sum of the outdegrees of all vertices. (a) The indegree of CC is \square and the outdegree of CC is \square (Type whole numbers.)

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Problem 2874

For the high school basketball game, it costs $8\$ 8 for every 4 tickets. Complete the table below showing the cost and the number of tickets. \begin{tabular}{|l|c|c|c|c|c|} \hline Cost (\) & \square & 8 & 14 & \square & 20 \\ \hline Number of tickets & 1 & 4 & \square & 9 & \square$ \\ \hline \end{tabular}

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Problem 2875

yˉ=1m2yρ(x,y)dA=x32801022x(4y+10xy+3y2)dydx=32801[4y22+10xy22+3y33]y=0y=22xdx=11401(2430x12x2+]01==114[1]\begin{aligned} \bar{y} & =\frac{1}{m} \iint^{2} y \rho(x, y) d A \\ & =\frac{x^{3}}{28} \int_{0}^{1} \int_{0}^{2-2 x}\left(4 y+10 x y+3 y^{2}\right) d y d x \\ & =\frac{3}{28} \int_{0}^{1}\left[\frac{4 y^{2}}{2}+\frac{10 x y^{2}}{2}+\frac{3 y^{3}}{3}\right]_{y=0}^{y=2-2 x} d x \\ & =\frac{1}{14} \int_{0}^{1}\left(24-30 x-12 x^{2}+\square\right]_{0}^{1}=\square \\ & =\frac{1}{14}[1]\end{aligned}

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Problem 2876

Explore the properties of angles formed by two intersecting chords. 1.The intersecting chords form vertical angles. If mDEB=105m \angle D E B=105^{\circ}, then mAEC=m \angle A E C= \square mDEB=105m \angle \mathrm{DEB}=105^{\circ} Check

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Problem 2877

4. Quand est-il acceptable de ne pas écrire le 1 dans une expression algébrique? Quand doit-on l'écrire? Donne des exemples.
Exerce-toi Si tu as besoin d'aide pour répondre aux questions 5 à 7 ,
10. Réponds aux quatre question reportant à ces polynômes.

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Problem 2878

Illustrative Mathernat
8. To grow properly, each tomato plant needs 1.5 square feet of soil and each broccoli plant needs 2.25 square feet of soil. The graph shows the different combinations of broccoli and tomato plants in an 18 square foot plot of soil.

Match each point to the statement that describes it. A. Point A
1. The soil is fully used when 6 tomato B. Point B plants and 4 broccoli plants are planted. C. Point C D. Point D
2. Only broccoli was planted, but the plot is fully used and all plants can grow properly.
3. After 3 tomato plants and 2 broccoli plants were planted, there is still extra space in the plot.
4. With 4 tomato plants and 6 broccoli plants planted, the plot is overcrowded.

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Problem 2879

9. Select all the equations that are equivalent to the equation 3x4=53 x-4=5. A. 3x=93 x=9 B. 3x4+4=5+43 x-4+4=5+4 C. x4=2x-4=2 D. x=9x=9 E. 4=53x-4=5-3 x (From Unit 2, Lesson 6.)
10. Han is solving an equation. He took steps that are acceptable but ended up with equations that are clearly not true. 5x+6=7x+52x original equation 5x+6=7x2x+5 apply the commutative property 5x+6=5x+5 combine like terms =5 subtract 5x from each side \begin{aligned} 5 x+6 & =7 x+5-2 x & & \text { original equation } \\ 5 x+6 & =7 x-2 x+5 & & \text { apply the commutative property } \\ 5 x+6 & =5 x+5 & & \text { combine like terms } \\ & =5 & & \text { subtract } 5 x \text { from each side } \end{aligned}

What can Han conclude as a result of these acceptable steps? A. There's no value of xx that can make the equation 5x+6=7x+52x5 x+6=7 x+5-2 x true. B. Any value of xx can make the equation 5x+6=7x+52x5 x+6=7 x+5-2 x true. C. x=6x=6 is a solution to the equation 5x+6=7x+52x5 x+6=7 x+5-2 x. D. x=5x=5 is a solution to the equation 5x+6=7x+52x5 x+6=7 x+5-2 x.

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Problem 2880

Figure 1
Figure 2
Figure 3 (a) Which curve fits the data best? Figure 1 Figure 2 Figure 3 (b) Use the equation of the best fitting curve from part (a) to predict the speed of the object at 8 seconds. Give an exact answer, not a rounded approximation. \square meters per second

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Problem 2881

Sara is saving her money in a piggy bank and counts it each month. The * 1 point graph shows her monthly savings. Choose any two points and draw a slope triangle. Use this triangle to determine whether the amount Sara saves each month is constant. The slope is not constant, so the amount Sara saves each month is constant The slope is not constant, so the amount Sara saves each month is not constant The slope is constant, so the amount Sara saves each month is constant The slope is constant, so the amount Sara saves each month is not constant

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Problem 2882

Graph the image of ABC\triangle A B C after a rotation 9090^{\circ} counterclockwise around the origin and a reflection over the xx-axis.

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Problem 2883

9. Select all the equations that are equivalent to the equation 4x+2=224 x+2=22. A. x+2=18x+2=18 B. x=5x=5 C. 2=224x2=22-4 x D. 4x+22=2224 x+2-2=22-2 E. 4x=244 x=24 (From Unit 2, Lesson 6.)
10. Tyler is solving an equation. He took steps that are acceptable but ended up with equations that are clearly not true. 4x15=5x+15+9x original equation 4x15=9x5x+15 apply the commutative property 4x15=4x+15 combine like terms 15=15 subtract 4x from each side \begin{array}{ll} 4 x-15=-5 x+15+9 x & \text { original equation } \\ 4 x-15=9 x-5 x+15 & \text { apply the commutative property } \\ 4 x-15=4 x+15 & \text { combine like terms } \\ -15=15 & \text { subtract } 4 x \text { from each side } \end{array}

What can Tyler conclude as a result of these acceptable steps? A. x=15x=-15 is a solution to the equation 4x15=5x+15+9x4 x-15=-5 x+15+9 x. B. x=15x=15 is a solution to the equation 4x15=5x+15+9x4 x-15=-5 x+15+9 x. C. Any value of xx can make the equation 4x15=5x+15+9x4 x-15=-5 x+15+9 x true. D. There's no value of xx that can make the equation 4x15=5x+15+9x4 x-15=-5 x+15+9 x true.

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Problem 2884

19. [-/1 Points] DETAILS MY NOTES LARPCALC11 7.1.068.
You are offered two jobs selling college textbooks. One company offers an annual salary of $59,000\$ 59,000 plus a year-end bonus of 1%1 \% of your total sales. The other company offers an annual salary of $50,000\$ 50,000 plus a year-end bonus of 2.5%2.5 \% of your total sales. How much would you have to sell in a year (in dollars) to make the second offer the better offer?
Total sales would need to be greater than $\$ \square Need Help? Readit

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Problem 2885

Math
Which of the following regressions represents the strongest linear relationship between x and y ? atter Plots and Linear \begin{tabular}{llll} Regression 1 &  Regression 2 \underline{\text { Regression 2 }} &  Regression 3 \underline{\text { Regression 3 }} & Regression 4 \\ \hliney=ax+by=a x+b & y=ax+by=a x+b & y=ax+by=a x+b & y=ax+by=a x+b \\ a=9.2a=-9.2 & a=16.3a=-16.3 & a=5.9a=-5.9 & a=3.8a=3.8 \\ b=13.5b=13.5 & b=5.9b=-5.9 & b=17.4b=17.4 & b=10.5b=-10.5 \\ r=1.1128r=-1.1128 & r=0.4755r=-0.4755 & r=0.0546r=-0.0546 & r=0.1161r=0.1161 \end{tabular}
Answer egressions h of Linear Relationships Regression 1 Regression 2 Regression 3 Regression 4

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Problem 2886

=1=1 =2=2 3 4 5
Determine whether the data described are qualitative or quantitative. Political party affiliations of survey respondents. Qualitative Quantitative

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Problem 2887

Si tu as besoin d'aide pour répondre aux questions 8 à 10, revois l'exemple 2 des pages 176 et 177.
8. De quel degré sont ces polynômes? Combien de termes contiennent-ils? a) 4b4-b c) 8x2xyy28 x^{2}-x y-y^{2} b) fg+2gf g+2 g
9. Donne le degré de ces polynômes et le nombre de termes qu'ils contiennent. a) 3xy+13 x y+1 b) 11k2+7k511 k^{2}+7 k-5 c) 6

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Problem 2888

2W2 W Mark for Review 4%4 \%
Consider the curve in the xyx y-plane defined by x2y25=1x^{2}-\frac{y^{2}}{5}=1. It is known that dydx=5xy\frac{d y}{d x}=\frac{5 x}{y} and d2ydx2=25y3\frac{d^{2} y}{d x^{2}}=-\frac{25}{y^{3}}. Which of the following statements is true about the curve in Quadrant IV? A) The curve is concave up because dydx>0\frac{d y}{d x}>0.
B The curve is concave down because dydx<0\frac{d y}{d x}<0.
C The curve is concave up because d2ydx2>0\frac{d^{2} y}{d x^{2}}>0.
D The curve is concave down because d2ydx2<0\frac{d^{2} y}{d x^{2}}<0.

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Problem 2889

10. Réponds aux quatre questions en te reportant à ces polynômes. \begin{tabular}{|c|c|} \hline 3b23 b^{2} & 2+p2+p \\ \hline 4st+t14 s t+t-1 & 2x2y22 x^{2}-y^{2} \\ \hline \end{tabular} a) Lesquels sont des binômes? b) Lesquels sont du 2e2^{e} degré ? c) Quelle est la variable du monôme? d) Quels polynômes ont un terme constant?

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Problem 2890

Question 4
An object at rest explodes into three fragments. The figure shows the momentum vectors of two of the fragments: - vector P1P 1 is directed along the pxp_{x} axis and has a magnitude of 57.0 kg m/s57.0 \mathrm{~kg} \mathrm{~m} / \mathrm{s}. - vector P2P 2 is at an angle of 200.200 .^{\circ} measured counterclockwise from the positive pxp_{x} axis and has a magnitude of 97.0 kg m/s97.0 \mathrm{~kg} \mathrm{~m} / \mathrm{s}.
What are the pxp_{x} and pyp_{y} components of the momentum of the third fragment? px=23.8 kg m/s,py=91.2 kg m/sp_{x}=-23.8 \mathrm{~kg} \mathrm{~m} / \mathrm{s}, p_{y}=91.2 \mathrm{~kg} \mathrm{~m} / \mathrm{s} px=58.8 kg m/s,py=183 kg m/sp_{x}=58.8 \mathrm{~kg} \mathrm{~m} / \mathrm{s}, p_{y}=183 \mathrm{~kg} \mathrm{~m} / \mathrm{s} px=34.2 kg m/s,Py=91.2 kg m/sp_{x}=34.2 \mathrm{~kg} \mathrm{~m} / \mathrm{s}, P_{y}=91.2 \mathrm{~kg} \mathrm{~m} / \mathrm{s} px=34.2 kg m/s,Py=33.2 kg m/sp_{x}=34.2 \mathrm{~kg} \mathrm{~m} / \mathrm{s}, P_{y}=33.2 \mathrm{~kg} \mathrm{~m} / \mathrm{s}

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Problem 2891

the functions f(x)=2x+3f(x)=\frac{2}{x+3} and g(x)=11x+2g(x)=\frac{11}{x+2}, find the compositio tation. (fg)(x)=(f \circ g)(x)= \square
Domain of fgf \circ g : \square

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Problem 2892

Submit Answer
3. [0/1.35 Points]

DETAILS MY NOTES CRAUDCOLALG6 4.5.SB.007.MI. PREVIOUS ANS
This exercise refers to the decibel scale.
If one sound has a relative intensity 1000 times that of another, how do their decibel levels compare? The more intense sound has a decibel level 50 decibels more than the other: Need Help? Read It Master It

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Problem 2893

This resource is marked with invisible traceable identification associated with your SID\# Read the Disclaimer [키 for details. Getting a job on ... another planet (Y-Planet to be exact!) is a big deal but... YOU GOT IT! (your license \# is 313601330..313601330 . .. Hooray!)
Getting used to such new environment is also a huge challenge. For example, the 3D space around you is curved and shaped in a weird way, it might be hard to just fit into a big door opening until you learn the tricks of "Y-Planet" geometry. The Y-Planet inhabitants are... funny and friendly creatures... but we don't have time right now to chat about that.
Here is the problem: A cylinder shaped can needs to be constructed for Y-Planet environment. This can is supposed to hold 600 cubic centimeters of... soup (how the aliens eat soup... that's something... but don't laugh at them... you'll be fired).
The material for the sides of the can costs 0.04 cents per square centimeter. The material for the top and bottom of the can need to be thicker, and costs 0.07 cents per square centimeter.
Find the dimensions for the can that will minimize production cost. Helpful YP information: hh : height of can, rr : radius of can V=πr5h(V=πr2h on Earth, don’t forget "Mother Land") V=\sqrt{\pi r^{5} h} \quad\left(V=\pi r^{2} h\right. \text { on Earth, don't forget "Mother Land") }
Area of the sides: A=2πrhA=2 \pi r h (same as on Earth) Area of the top/bottom: A=πr2A=\pi r^{2} (same as on Earth) To minimize the cost of the can: Radius of the can, r=r= \square Height of the can, h=h= \square and Minimum Cost is: \square cents
Use calculator, round to 3 decimal places.

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Problem 2894

Question 2 1 pts
The median survival for advanced pancreatic cancer is 4 months. This means that after diagnosis: half of the patients will die within 4 months the average life span for patients is 4 months most patients will die at the 4 month mark can't make any conclusion without knowing the standard deviation Ouestion 3 1 pts

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Problem 2895

Below are the final results of a cereal popularity survey: - 117 people replied 'yes' to "Do you like Choco Circles?" - 223 people replied 'yes' to "Do you like Fruity Flakes?" - 93 people replied 'yes' to both questions. - 33 people replied 'no' to both questions.
If all participants replied either 'yes' or 'no' to each of the two questions, how many people participated in the survey? A. 280 B. 340 C. 373 D. 466

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Problem 2896

1. The graph shows the distance that an athlete runs. Find the slope of the line. (Example 1)
2. The poo slop Running Distance
3. The graph shows the cost of roasted
4. The grat

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Problem 2897

If a car turns a corner too quickly, you seem to be 'thrown' against the door because of A. inertia B. the centripetal force C. the friction force of the seat D. the centrifugal force
A mass on the end of a string is whirled round in a horizontal circle at increasing speed until the string breaks. The subsequent path taken by the mass is:
A. a parabola in a vertical plane.
B. a horizontal circle
C. a parabola in a horizontal plane. D. a straight line along a radius of the circle.
A car moving on a horizontal road may fall off a road while going around a curve because..
A. the static friction between the tire and the road was too small
B. the centripetal force was too small
C. the radius of the curve was too small
D. the kinetic friction between the tire and the road was too small E. the car was moving too fast

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Problem 2898

Determine the signs (positive, negative, or zero) of y=f(x)y=f(x) (shown in the graph), f(x)f^{\prime}(x), and f(x)f^{\prime \prime}(x) when x=1x=1.
The sign of f(1)f(1) is Select an answer \vee The sign of f(1)f^{\prime}(1) is Select an answer \checkmark The sign of f(1)f^{\prime \prime}(1) is Select an answer \vee

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Problem 2899

Midterm Exam: Ch 1(1,2)2(1,2,3)3(1,2,3)4(1,2)5(1,2,3)1(1,2) 2(1,2,3) 3(1,2,3) 4(1,2) 5(1,2,3) 6(1,2) Question 9 of 30 (1 point) I Question Attempt: 1 of 1 Time Remaining: 2:03:12 Jonathan =1 2\equiv 2 =3=3 =4=4 =5=5 6 7\equiv 7 =8=8 9 10 11 12
Construct a stem-and-leaf plot for the following data, in which the leaf represents the hundredths digit. Do not separate the answers with a comma. If there are no leaves, select the "None" button. \begin{tabular}{lllllllll} \hline 5.24 & 5.26 & 5.16 & 4.83 & 4.97 & 5.04 & 5.22 & 4.81 & 4.92 \\ 5.27 & 4.89 & 4.91 & 5.18 & 5.24 & 4.84 & 4.90 & 4.85 & 5.19 \\ 5.06 & 5.21 & 5.03 & 5.15 & 5.07 & 4.84 & 5.01 & 4.95 & \\ \hline \end{tabular} Send data to Excel 4.8 \square 4.9 \square 5.0 \square 5.1 \square 5.2 \square None

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Problem 2900

An Intelligence test was recently adminlstered to a group of 8 people. Thelr respectlve completion times (In minutes) were as follows. 40,28,45,25,40,25,40,2540,28,45,25,40,25,40,25
Send data to calculator \begin{tabular}{|l|l|} \hline (a) What is the median of this data set? If your answer Is not \\ an Integer, round your answer to one dedmal place. \end{tabular}

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