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A)
SELECT ALI APPLICABIE CHO
B)
2(cos(90∘)+isin(90∘))2cos(90∘)+i⋅2sin(90∘)
C)
D)
−cos(90∘)−isin(90∘)2(cos(90∘)−isin(90∘))
E)
≈1+i(2)
Out of 160 workers surveyed at a company, 37 walk to work.
a. What is the experimental probability that a randomly selected worker at that company walks to work?
b. Predict about how many of the 4000 workers at the company walk to work.
a. The experimental probability is □
Tue Dec 3
a cdn.assess.prod.mheducation.com This question has two parts. First, answer Part A. Then, answer Part B.
Part A
Choose the correct answer.
A sandwich shop uses 0.14 pound of tomato on each sandwich. How much tomato will the shop need sandwiches?
Look at the decimal grids. Which represents the problem?
A) □
B) □
C)
\begin{tabular}{|l|l|l|l|}
\hline -I & & & \\
\hline-1 & & & \\
\hline \\
\hline & & & \\
\hline & & & \\
\hline & & & \\
\hline & & & \\
\hline & & & \\
\hline
\end{tabular} Part B
Enter the answer.
How much tomato will the shop need to make the 6 sandwiches?.
pound(s) of tomato
10
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B
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310ei(4203)
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1021ei(3∞)
B)
310[cos(420∘)+isin(420∘)]
C)
D)
ei(2aP)310ei(120∘)
E)
310[cos(3420∘)+isin(3420∘)]
F)
10[cos(3420∘)+isin(3420∘)]
According to a survey in a country, 39% of adults do not own a credit card. Suppose a simple random sample of 400 adults is obtained. Comple
B. Not normal because n≤0.05N and np(1−p)<10
C. Not normal because n≤0.05N and np(1−p)≥10
D. Approximately normal because n≤0.05N and np(1−p)≥10 Determine the mean of n~ e sampling distribution of p^.
μp^=.39 (Round to two decimal places as needed.)
Determine the standard deviation of the sampling distribution of p^.
σp^=.024 (Round to three decimal places as needed.)
(b) What is the probability that in a random sample of 400 adults, more than 42% do not own a credit card? The probability is .1056 .
(Round to four decimal places as needed.)
Interpret this probability.
If 100 different random samples of 400 adults were obtained, one would expect 11 to result in more than 42% not owning a credit card.
(Round to the nearest integer as needed.)
(c) What is the probability that in a random sample of 400 adults, between 34% and 42% do not own a credit card? The probability is □
(Round to four decimal places as needed.)
A manufacturer of women's clothing is interested to know if age is a factor in whether women would buy a particular garment depending on its quality. A researcher samples 3 age groups and each woman is asked to rate the garment as excellent, average or poor as shown in the table below:
\begin{tabular}{|c|c|c|c|c|}
\cline { 2 - 5 } \multicolumn{2}{|c|}{} & \multicolumn{3}{c|}{ Age group } \\
\cline { 2 - 5 } & Excellent & 15−20 & 21−30 & 31−60 \\
\hline 20 & 40 & 47 & 46 \\
\hline & Average & 51 & 74 & 57 \\
\hline & Poor & 29 & 19 & 37 \\
\hline
\end{tabular} Test the bypothesis, at 5% level of significance, that rating is not related to age group.
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10cos(210∘)+i10sin(210∘)4cos(−90∘)+i4sin(−90∘)
A)
SELECT ALL APPLC
B)
104⋅ei(−90∘+210∘)104cos(120∘)+i104sin(120∘)
C)
D)
104cos(−90∘−210∘)+i104sin(−90∘−210∘)104cos(−300∘)+i⋅104sin(−300∘)
3. The table below shows the number of snacks still in the pantry as time goes on:
\begin{tabular}{|l|c|c|c|c|}
\hline \begin{tabular}{l}
Days since \\
Store Trip
\end{tabular} & 1 & 3 & 6 & 7 \\
\hline \begin{tabular}{l}
Number of \\
Snacks
\end{tabular} & 20 & 12 & 5 & 3 \\
\hline
\end{tabular}
a. Create a scatter plot for the data from the table:
b. Draw a line of best fit.
c. What association is depicted in the graph?
d. Predict how many snacks were left by the 5th
day.
e. Predict how many snacks were left by the 10th day. .
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Question 16, 4.3.X1
Part 1 of 3
K'lyah Harris
12/03/
HW Score: 82.5%, 13.2 of 16 points
O Points: 0 of 1
The accompanying data represent the weights of various domestic cars and their gas mileages in the city. The linear correlation coefficient between the weight of a car and its miles per gallon in the city is r = -0.969. The least-squares regression line treating
explanatory variable and miles per gallon as the response variable is y = -0.0060x + 41.3516. Complete parts (a) through (c) below.
Click the icon to view the data table.
(a) What proportion of the variability in miles per gallon is explained by the relation between weight of the car and miles per gallon?
The proportion of the variability in miles per gallon explained by the relation between freight of the car and miles per gallon is %.
(Round to one decimal place as needed.)
3. Kyra has a rectangular vegetable garden that measures 12 feet by 18 feet. She wants to reduce the area of her garden. She closes the fence further in so that the new garden measures 12 feet by 9 feet. How does the area of the new garden compare to the area of the old garden? (Find the area of both the old \& new gardens.)
(a) The new area will be one-half as large.
(b) The new area will be two-thirds as large.
(c) The new area will be one-fourth as large.
(d) The new area will be three-fourths as large. 4. Which of the following is equal to 1211 ?
(a) 0.916
(b) 0.916
(c) 0.916
(d) 1.09
1. On a cold day, Stackhouse measured the outside temperature and discovered it was 13 degrees Fahrenheit. Each hour after that, it was 3 degrees colder than the previous hour's temperature. At this rate, how many hours would it take for the temperature to reach -17 degrees Fahrenheit?
(a) 4 hours
(b) 9 hours
(c) 10 hours
(d) 30 hours
2. A successful music app tracked the number of song downloads each day for a month for 4 music artists, represented by lines ℓ,j,m, and d over the course of a month. Which line represents an artist whose downloads remained constant over the month?
A. ℓ
B. j
C. m
D. d
A student council has 15 members, including Yuko, Luigi, and Justip
a) The staff advisor will select three members at random to be treasurer, secretary, and liaison to the principal. Determine the probability that the staff advisor will select Yuko to be treasurer, Luigi to be secretary, and Justin to be liaison.
Use synthetic division to find the quotient and remainder when −2x4+9x3+5x2+1 is divided by x−5 by completing the parts below.
(a) Complete this synthetic division table.
5)−29501□□□□□□□□□
(b) Write your answer in the following form: Quotient +x−5 Remainder .
x−5−2x4+9x3+5x2+1=□+x−5□□
Clantinue
Submi
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The rate of formation of NO2(g) in the reaction
2N2O5(g)→4NO2(g)+O2(g)
is 5.78(molNO2)/L/s. What is the rate at which N2O5 decomposes? 1. 0.723(molN2O5)/L/s 2. 5.78(molN2O5)/L/s 3. 1.45(molN2O5)/L/s 4. 11.6(molN2O5)/L/s 5. 2.89(molN2O5)/L/s
Exponents and Polynomials
Polynomial long division: Problem type 1 Divide.
(6x2+24x+18)÷(2x+6) Your answer should give the quotient and the remainder. Quotient: □ Remainder: □
is asked to rate the garment as excellent, average or poor as shown in the table
\begin{tabular}{|c|c|c|c|c|}
\hline & & \multicolumn{3}{|c|}{Age group} \\
\hline & & 15-20 & 21-30 & 31-60 \\
\hline \multirow{3}{*}{28} & Excellent & 40 & 47 & 46 \\
\hline & Average & 51 & 74 & 57 \\
\hline & Poor & 29 & 19 & 37 \\
\hline
\end{tabular}
nthesis, at 5% level of significance, that rating is not related to age group.
Begin by graphing f(x)=3x. Then use transformations of this graph to graph the given function. Be sure to graph and give the equation of the asymptote. Use the graph to determine the function's domain and range. If applicable, use a graphing utility to confirm your hand-drawn graphs.
g(x)=3x−4 Which transformation is needed to graph the function g(x)=3x−4 ? Choose the correct answer below.
A. The graph of f(x)=3x should be shifted 4 units upward.
B. The graph of f(x)=3x should be shifted 4 units downward.
C. The graph of f(x)=3x should be shifted 4 units to the left.
D. The graph of f(x)=3x should be shifted 4 units to the right.
At a financial institution, a fraud detection syztem identifies suspicious tranaactions and sends them to a specialist for review. The specialist reviews the transaction, the customer profile, and past history. If there is sufficient evidence of fraud, the tranaaction is blocked. Based on past history, the specialist blocks 40 percent of the suspicious tranactions. Assume a suspicious transaction is independent of other suspicious transactions.
(a) Suppose the specialist will review 136 suspicious transactiona in one day. What is the expected number of blocked transactiona by the specialist? Show your work. Note On your AP Exam, you will handwrite your responses to free-response questions in a test booklet B
I
U□
(b) Suppose the specialist wants to know the number of suspicious transactions that will need to be revieved until reaching the first transaction that will be blocked.
(i) Define the random variable of interest and state how the variable is distributed.
(ii) Determine the expected value of the random variable and interpret the expected value in context.
□
B
I
□
(c) Consider a batch of 10 randomly selected suspicipus transactions. Suppose the specializt wants to know the probability that 2 of the ransactions will be blocked.
(i) Define the random variable of interest and state how the variable is distributed.
(ii) Find the probability that 2 transactions in the batch will be blocked. Show your work.
4. Amanda babysits and Petra does yard work on weekends. The graph relating Amanda's earnings to the number of hours she babysits passes through the points (0,0) and (4,24). The table below relates Petra's earnings to the number of hours she does yard work. Petra's Earnings
\begin{tabular}{|l|c|c|c|}
\hline Hours & 3 & 6 & 9 \\
\hline Farnings (\$) & 15 & 30 & 45 \\
\hline
\end{tabular} Who earns more per hour?
"The volume of a given mass of a gas varies inversely with the pressure if the absolute temperature is kept constant" is a statement of
Charles' law
Boyle's law
Dalton's law
Avagadro's law
Next
A chemist conducts an experiment in which 2.00 L of hydrogen gas is collected over water at 1.00 atm and 298.15 K . The phrase "over water" means that the gas was collected by bubbling it into an inverted bottle filled with water, which is sitting in a water bath. The gas is trapped in the bottle, displacing the water into the water bath. However, the gas collected is now saturated with water vapor. The partial pressure of water vapor at 298.15 K is 0.0300 atm . Using Dalton's Law, calculate the pressure of the hydrogen gas in atm.
Express the following as the logarithm of a single quantity.
2loge9+4logeπ−loge52loge9+4logeπ−loge5=□□
(Simplify your answer. Type an exact answer, using π as needed. Use integers
Question 10 (6 points)
For the function f(x)=−2x2+8x+4
a) Find the average rate of change from x=2 to x=11
b) Create a table calculating the average rates of change of f(x) between 4 and x as x
approaches 4 from the right. (Use 6 decimal places for intermediate calculations)
c) Based on your table what is the instantaneous rate of change of f(x) at x=4 ? Explain how you used the table to find your answer.
Use the properties of logarithms to expand the following expression
log((x+6)3x5) Your answer should not have radicals or exponents.
You may assume that all variables are positive.
log((x+6)3x5)=m
Here are the numbers of children in 14 elementary school classes.
16,20,20,18,16,20,18,18,16,20,17,20,19,16 Send data to calculator Find the modes of this data set.
If there is more than one mode, write them separated by commas. If there is no mode, click on "No mode."
Answer the question below, and then fill in the blanks if necessary. Can the distributive property be used to rewrite 2×(9÷3) ?
Yes No
If yes, fill in the blanks below.
2×(9÷3)=□□□□
Math 110 Course Resources
- Definite Integrals Course Packet on the Fundamental Theorem of Calculus The marginal cost function associated with producing x widgets is given by
C′(x)=−0.2x+75
the day.
□ dollars
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Unit 11: Sequences and Series
□
Homework 3: Geometric Sequences
This is a 2-page document! ** 1. {18,−108,648,−3888,…} 2. {27,36,48,64,…} 3. {10,4,58,2516,…} Directions: Write a rule for each sequence, then find the indicated term. 4. {−3,−9,−27,−81,…};a, 5. {−18,27,−281,4243,…};a9 6. {401,−101,52,−58,…};a11 7. {100,60,36,5108…};a8
\begin{tabular}{|c|c|}
\hline \multicolumn{2}{|c|}{ Coins Collected } \\
\hline Sam & 257 \\
\hline Philip & 510 \\
\hline Rebecca & 153 \\
\hline
\end{tabular} How many coins would Sam need to collect to be equal to Philip?
(a) The standard normal curve is graphed below. Shade the region under the standard norm z=−0.50.
(b) Use this table or the ALEKS calculator to find the area under the standard normal curve to t Give your answer to four decimal places (for example, 0.1234).
A significant F-ratio is obtained in an ANOVA when
At least two means differ significantly.
All means differ significantly
The sample mean differs from the population mean.
The sample variance differs from the population variance.
DEFG is a rectangle. DF=5x−3 and EG=x+5. Find the value of x and the length of each diagonal.
HINT: Sketch the rectangle DEFG and draw DF and EG.
Select one:
a. x=1,DF=6,EG=6
b. x=2,DF=7,EG=12
c. x=2,DF=6,EG=6
d. x=2,DF=7,EG=7
The equation for h(x) and the transformed function p(x) in terms of h(x) are shown. Describe the transformation(s) performed on h(x) that produced p(x).
h(x)=x3p(x)=2h(x+3)+6
3. A bus company has 4000 passengers daily, each paying a fare of $2. For each $0.15 increase in the fare, the company estimates that it will lose 40 passengers. If the company needs to take in (revenue) $10450 per day to stay in business, what fare should be charged? 4. Following its advertising campaign to double its toppings, Zittza Pizza decides to double the area of its 10 cm by 12 cm advertisement in the Woodbridge Times by adding the same length (number of centimeters) to both dimensions of the ad. What length must be added to each side? Give you answer correct to one decimal place?
Of the 44 plays attributed to a playwright, 14 are comedies, 13 are tragedies, and 17 are histories. If one play is selected at random, find the odds in favor of selecting a history. The odds in favor of selecting a history are □□
(Simplify your answer.)
Solve the given linear programming problem.
Maximize z=5x+5y subject to x≥0,y≥0,x+y≥1,2x+3y≤12,3x+2y≤12 What is the solution?
The maximum value of z is z=□ , and it occurs at the point (x,y)=□ .
(Type exact answers. Type integers or simplified fractions.)
System C
L1: y=−x−1
L2: y=−2x−3 This system of equations is:
- consistent dependent - consistent independent - inconsistent This means the system has:
- a unique solution: - no solution - infinitely many solutions Solution: ,, )
2. [4 pts] In the diagram below, △ABC has coordinates A(1,1),B(4,1), and C(4,5). Graph and label △A′′B′′C′′, the image of △ABC after the translation five units to the right and two units up followed by the reflection over the line y=0. [Unit 2, Unit 5]
9. Evaluate the triple integral
∭S4x2+4y2dV
where S is the solid that lies in the first octant space x≥0 and y≥0 below paraboloid z=−x2−y2+1 a above plane z=0.
Which description explains how the graph of f(x)=x could be transformed to form the graph of g(x)=x+7 ?
vertical stretch by a factor of 7
horizontal shift of 7 units left
horizontal shift of 7 units right
vertical shift of 7 units down
ogy Assignment 1 (Optional -
Question 9, 3.3.13-T
HW Score: 71.02%,8.52 of 12 points
Part 2 of 6
Points: 0 of 1
Sa Male and female populations of elephants under 80 years old are represented by age in the table below. Complete parts (a) through (d).
\begin{tabular}{|lrr|}
\hline Age & Males & Females \\
\hline 0−9 & 10 & 8 \\
\hline 10−19 & 11 & 8 \\
\hline 20−29 & 15 & 13 \\
\hline 30−39 & 16 & 17 \\
\hline 40−49 & 25 & 23 \\
\hline 50−59 & 21 & 22 \\
\hline 60−69 & 17 & 18 \\
\hline 70−79 & 14 & 13 \\
\hline
\end{tabular}
(a) Approximate the population mean and standard deviation of age for males.
μ=42.79 years
(Round to two decimal places as needed.)
σ=□ years
(Round to two decimal places as needed.)
1. CALCULATE: Finding the Mean and Median (3 points) For each set of numbers, find the mean and median.
\begin{tabular}{|l|l|l|}
\hline Set 1: {1,11,21,31,41,51,61} & Mean = & Median = \\
\hline Set 2: {28,29,30,31,32,33,34} & Mean = & Median = \\
\hline Set 3: {0,31,31,31,31,31,62} & Mean = & Median = \\
\hline
\end{tabular}
You deposit $5000 in a savings account that has a rate of 2%. The interest is compounded quarterly. How much money will you have after 10 years?
$□ (Simplity your answer. Round to the nearest cent as needed.)
The diameter of a human hair is 9⋅10−5 meters. The diameter of a spider's silk is 3⋅10−6 meters. How much greater is the diameter of a human hair than the diameter of a spider's silk?
Write your answer in scientific notation.
□ meters
In a normal distribution, a data value located 0.5 standard deviations below the mean has Standard Score: z=□ In a normal distribution, a data value located 1.6 standard deviations above the mean has Standard Score: z=□
In a normal distribution, the mean has Standard Score: z=□
An observer stands at a point P , one unit away from a track. Two runners start at the point S in the figure and run along the track. One runner runs 2 times as fast as the other. Find the maximum value of the observer's angle of sight θ between the runners. [Hint: Maximize tanθ ]
θ=□ radians
Question 8 - of 48 Step 2 of 3 Consider the following equations.
1−(4y+3x)=5(x−y) and y+3=7+8x Step 2 of 3: Express the second equation in slope-intercept form. Simplify your answer. Answer 2 Points
๑- learn.hawkeslearning.com/Portal/Test/TestTakeTest\#!
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Practice MA111 Fall 24 Question 8 - of 48 Step 3 of 3
Consider the following equations.
1−(4y+3x)=5(x−y) and y+3=7+8x Step 3 of 3: Determine if the two lines are parallel. Answer 2 Points
Yes
No
A variable is normally distributed with mean 20 and standard deviation 3 . Use your graphing calculator to find each of the following areas. Write your answers in decimal form. Round to the nearest thousandth as needed.
a) Find the area to the left of 20. □
b) Find the area to the left of 16. □
c) Find the area to the right of 17. □
d) Find the area to the right of 26 . □
e) Find the area between 16 and 29. □
1-4. "Find f(3) " means to find the output of function f(x) for an input of x=3. For the function f(x)=x−21, find each of the following Homework Help
a. Find f(4). (This means find the output of the function when x=4.)
b. Find x when f(x)=1. (This means find the input that gives an output of 1.)