Math

Problem 54301

Calculate: $\frac{1}{3} \times \frac{3}{4}=$

See Solution

Problem 54302

Use the equation $y = 2x + 3$ to fill in the missing $y$ values for $x = 1, 3, 5, 7, 9, 11$ .

See Solution

Problem 54303

Create a quadratic equation with real coefficients that has complex solutions. Explain your reasoning. (5.00 Points)

See Solution

Problem 54304

Jason eats 10 ounces of candy in 5 days.
a) How many pounds does he eat daily? (16 ounces = 1 pound) b) How long to eat 1 pound of candy?

See Solution

Problem 54305

Calculate the variance and standard deviation for the words spoken by toddlers: 27, 45, 38, 42, 4, 10.

See Solution

Problem 54306

Convert the following mixed numbers to improper fractions: 9) $2 \frac{1}{3}$ , 10) $-4 \frac{6}{7}$ .

See Solution

Problem 54307

Calculate the monthly payment for each scenario using $P=A\left[\frac{1-(1+r)^{-n}}{r}\right]^{-1}$ , where $r=$ annual rate/12.

See Solution

Problem 54308

Convert the mixed number $2 \frac{1}{3}$ into an improper fraction.

See Solution

Problem 54309

Find the probability of randomly selecting an apple, orange, banana, plum, or nectarine from a basket with 8 apples, 4 oranges, 3 bananas, 6 plums, and 11 nectarines.

See Solution

Problem 54310

Calculate the population standard deviation ( $\sigma=9.1$ bpm) and sample standard deviations for three groups of students.

See Solution

Problem 54311

Jason eats 10 ounces of candy in 5 days. How many pounds does he eat per day? How long to eat 1 pound? $(16$ ounces $=1$ pound $)$

See Solution

Problem 54312

Find the probability of randomly choosing an apple or plum from a basket with 8 apples, 6 plums, and more fruit. $P($ apple or plum $)$

See Solution

Problem 54313

At the start of the week, Barnes & Noble had science and art books in a 2:5 ratio. After selling $20\%$ of each type, 2,240 books remained. Find the initial number of each type. Let $s =$ science books and $a =$ art books. Show your work.

See Solution

Problem 54314

Calculate the population standard deviation ( $\sigma=9.1$ ) and sample standard deviations for given student pulse rates.

See Solution

Problem 54315

A survey of college students found: 855 drank alcohol, 615 smoked, 193 used drugs. How many students were surveyed?

See Solution

Problem 54316

A bucket has 9 shapes: triangle, square, rectangle, rhombus, parallelogram, trapezoid, pentagon, hexagon, octagon. Find the probability of selecting each shape.

See Solution

Problem 54317

Define $x$ as a number. The expression for "ten more than a number" is $x + 10$ .

See Solution

Problem 54318

Calculate the mean, variance, and standard deviation for the words spoken by toddlers: A (33), B (27), C (45), D (38), E (42).

See Solution

Problem 54319

Calculate the mean number of Hebrew words spoken by 5 toddlers: A (47), B (73), C (56), D (46), E (53).

See Solution

Problem 54320

Joshua needs $2 \frac{2}{4}$ cups of cream for 5 people. How much for 8 people? Show your calculations.

See Solution

Problem 54321

Find the mean, variance, and standard deviation for the words spoken in Hebrew by toddlers: A=47, B=73, C=56, D=46, E=53.

See Solution

Problem 54322

How much cream is needed for 8 people if $2 \frac{1}{4}$ cups are required for 5 people? Show your work.

See Solution

Problem 54323

Find the probability that a randomly opened page in a 50-page book is greater than 30 ( $P(>30)$ ) and is a prime number ( $P(prime)$ ).

See Solution

Problem 54324

Calculate the monthly payment for each dealership using the formula $P=A\left[\frac{1-(1+r)^{-n}}{r}\right]^{-1}$ , where $r=$ annual rate/12.

See Solution

Problem 54325

Alsha's expression $2\left(\frac{1}{2}\right)(4 \cdot 3)+6(3+4+5)$ shows how to calculate the net's area. Explain why.

See Solution

Problem 54326

Find the probability that a spinner lands on a number less than 10 when spun, given 9 out of 12 sections meet this condition.

See Solution

Problem 54327

Rewrite $24 + 54$ using the GCF of 24 and 54 times the sum of two numbers with no common factor from: 2, $2+3$ , 3, $3+4$ , $4+9$ , 6, $88+18$ , $12+27$ .

See Solution

Problem 54328

Jocelyn has \$450. She wants a jacket for \$123 and a necklace for \$293. Can she afford both items? Use estimation.

See Solution

Problem 54329

Calculate monthly payments, total car costs, and total interest for each dealership scenario using the formula:
$P=A\left[\frac{1-(1+r)^{-n}}{r}\right]^{-1}$
where $r$ is the annual rate/12.

See Solution

Problem 54330

Calculate the mean, degrees of freedom, variance, and standard deviation for the scores of northern U.S. women: 7, 4, 1, 3, 2.

See Solution

Problem 54331

Find the percentage of scores between 158 and $872$ in a normal distribution with mean 515 and std dev 119.

See Solution

Problem 54332

Identify the best measure of variability for the quiz scores: 87,88,89,90,90,90,92,92,93,94,95,96,96,97,98,98,98,99,99,99,100,100,100,100.

See Solution

Problem 54333

A standardized test's math scores have a mean of 515 and a standard deviation of 119. Find the percentages for the given ranges.

See Solution

Problem 54334

A snowboard company's profit is modeled by $P(x)=x+0.00125 x^{4}-3$ . Answer questions about the function's type, differences, end behavior, domain, intercepts, and profit for 3000 boards.

See Solution

Problem 54335

Calculate the mean, degrees of freedom, variance, and standard deviation for the scores: 6, 7, 5, 5, 7, 6.

See Solution

Problem 54336

Calculate $81 - 19$ .

See Solution

Problem 54337

Profit from selling snowboards is modeled by $P(x)=x+0.00125 x^{4}-3$ . Answer questions about function type, differences, end behavior, domain, intercepts, and profit for 3000 boards.

See Solution

Problem 54338

Determine the best measure of variability for the quiz scores: $87,88,89,90,90,90,92,92,93,94,95,96,96,97,98,98,98,99,99,99,100,100,100,100$ .

See Solution

Problem 54339

Find all factor pairs of 32.

See Solution

Problem 54340

Huy has 5 dimes and 8 nickels. Calculate the total amount in cents: $5 \times 10 + 8 \times 5$ .

See Solution

Problem 54341

Plot the number $149,273,785$ on a number line and round it to the nearest hundred.

See Solution

Problem 54342

KJ needs to sell how many items at \$16 each to afford a \$220 camp fee if he has \$140?

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Problem 54343

Are the expressions $3c+8$ and $8+c+c+c$ for total corn husks correct? Explain.

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Problem 54344

Thuy has 5 dimes and 8 nickels. How many cents is that in total? Calculate: $81 - 19 = 62$ .

See Solution

Problem 54345

Calculate the product of the expression: $\frac{14 \frac{2}{3}}{3} \times \frac{18}{18}$ .

See Solution

Problem 54346

Given data: 92, 84, 85, 93, 95, 89, 86, 91. Mean = 89.375.
1. Find sample variance and standard deviation.
2. Find population variance and standard deviation.
3. If 84 is 85, recalculate variance and standard deviation. What are the new values?

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Problem 54347

A standardized test has scores with a mean of 515 and a standard deviation of 119. Find the percentages for parts (a), (b), and (c).

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Problem 54348

Christina spent \$50 on supplies, sold items for \$2 each, and made a profit of \$180. How many items did she sell?

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Problem 54349

Find $n$ and $\Sigma X$ for the frequency distribution: $x$ : 5-2, 4-2, 3-2, 2-4, 1-1.

See Solution

Problem 54350

Find two prime numbers that multiply to equal 55. $p_1 \times p_2 = 55$

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Problem 54351

A house blueprint scales 1 in: 5 ft. Living room dimensions are 25 in by 3 in. Find the actual area in ft².

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Problem 54352

Evaluate the expression: $-3 e + 1 + 400 + 20 + 6$ .

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Problem 54353

Find the product of $2 \frac{5}{8} \times \frac{4}{7}$ in simplest form.

See Solution

Problem 54354

Find the product in simplest form: $2 \frac{5}{8} \times \frac{4}{7}$ .

See Solution

Problem 54355

Find the mean, variance, standard deviation, coefficient of variation, 25th percentile, median, 75th percentile, and range of ages: 19, 17, 19, 21, 17, 19, 21, 16, 18, 23.

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Problem 54356

Find the actual area of a living room that is 2.5 in by 3 in on a scale of 1 in: 5 ft.

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Problem 54357

Multiply the mixed numbers: $4 \frac{2}{11} \times 1 \frac{10}{23}$ .

See Solution

Problem 54358

Solve for $r$ in the equation: $10=-\frac{2}{3} r$ .

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Problem 54359

Calculate the Z-scores for the data values 62, 90, 50, 90, and 73. Round answers to two decimal places.

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Problem 54360

Calculate the sum of squares (SS), sample and population variance, and standard deviation for the data: $90, 98, 77, 84, 95, 100, 94, 90$ .

See Solution

Problem 54361

Calculate: $4,509 - 1 \frac{0 \times 4160}{16} + 0 + 9$

See Solution

Problem 54362

What is 1 times $\frac{13}{16}$ ?

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Problem 54363

A pack of 8 notebooks costs \ $10.80. Find the cost$ n $of each notebook using$ 8n = 10.80 $. What is$ n$?

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Problem 54364

Calculate $42 \times 3 = ?$ Choose from: 1200, 600, 4.0, 2.0.

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Problem 54365

Find the Z-scores for the values 62, 90, 50, 90, 73 with a mean of 73. Round to two decimal places and calculate the standard deviation if needed.

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Problem 54366

A ship's captain records arrival times. What does +14 mean? The ship arrives 14 minutes later than scheduled.

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Problem 54367

Convert the mixed number -4 6/7 to an improper fraction.

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Problem 54368

Convert the fraction $-\frac{9}{4}$ into a mixed number.

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Problem 54369

Simplify the expression $x+x+x+x+y+y+3+3$ into an equivalent form using the numbers 1, 2, 3, 4, 5, 6, 7, 9.

See Solution

Problem 54370

Find the value of $j^{3} \div 2 + 3 \cdot k^{2}$ for $j=10$ and $k=4$ . Options: 548, 644, 3,200, 8,048.

See Solution

Problem 54371

Max threw darts 20 times: 12 hits at 10 points, 6 at 25 points, and 2 at 50 points. Find the probability of his next throw.

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Problem 54372

At noon, the temperature was $-17^{\circ} \mathrm{F}$ and changed to $-15^{\circ} \mathrm{F}$ . Was it warmer or colder?

See Solution

Problem 54373

Round $0.7 \underline{5} 8$ to the nearest digit. A. $0.75$ B. $0.8$ C. $0.76$ D. $0.7$

See Solution

Problem 54374

Calculate $8 \times \frac{2}{3}$ .

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Problem 54375

Round 19.5 to the nearest whole number. What is your answer?

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Problem 54376

Classify the polynomial $-9q - 3$ as cubic, quadratic, linear, or none of these.

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Problem 54377

Which numbers round to 7.91 to the nearest hundredth? Options: A. 7.914 B. 7.905 C. 7.901 D. 7.915 E. 7.909

See Solution

Problem 54378

Calculate $\frac{3}{4} \times 2 \frac{2}{3}$ . What is the result?

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Problem 54379

Classify the polynomial $4 j^{9}+4 j$ as monomial, binomial, trinomial, or none of these.

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Problem 54380

Classify the polynomial $-2 p^{3}$ as monomial, binomial, trinomial, or none of these.

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Problem 54381

Classify the polynomial $9 f^{3}-9 f$ : cubic, quadratic, linear, or none of these?

See Solution

Problem 54382

Classify the polynomial $-2k$ as monomial, trinomial, binomial, or none of these.

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Problem 54383

How long do 5 pairs of size 8 kids shoes (each $9 \frac{2}{3}$ inches) measure when lined up end to end?

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Problem 54384

Solve for $v$ in the equation $u = v w + z$ .

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Problem 54385

Classify the polynomial $3g^{2} - g$ . Options: monomial, trinomial, binomial, none of these.

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Problem 54386

Classify the polynomial $-3s$ . Is it linear, quadratic, cubic, or none of these?

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Problem 54387

How long do 5 pairs of size 8 kids shoes (each $9 \frac{2}{3}$ inches) measure in total? A. $36 \frac{2}{3}$ B. $48 \frac{1}{3}$ C. $77 \frac{1}{3}$ D. 62

See Solution

Problem 54388

Find the probability of choosing a date in June that is odd and a multiple of 3, and after the 16th of June.

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Problem 54389

Solve for $x$ in the equation $[\log (x !)] = x$ .

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Problem 54390

Marcus uses $3 \frac{3}{8}$ feet for Crystal and $2 \frac{3}{4}$ feet for Tim. How much ribbon is left from 8 feet?

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Problem 54391

Find $x$ such that $\lfloor \log(x!) \rfloor = x$ using Stirling's approximation for $x!$ .

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Problem 54392

What is the distance from Mount Everest to the Mariana Trench if Everest is 29,029 feet and the trench is 35,070 feet deep?

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Problem 54393

Find the probability of Michael Phelps choosing each type of medal: gold, silver, and bronze, given he has 23 gold, 3 silver, and 2 bronze.

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Problem 54394

Show that for any nonzero integer $n$ , the expression $\frac{n+1}{n}$ is always greater than 1.

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Problem 54395

Find the perimeter of an equilateral triangle with sides measuring $1 \frac{3}{4}$ inches each.

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Problem 54396

Given the data set $\{90, 98, 77, 84, 95, 100, 94, 90\}$ , find: 1) Sum of squares (SS). 2) SS if population data. 3) Sample standard deviation and variance. 4) Population standard deviation and variance.

See Solution

Problem 54397

Convert the fraction $\frac{38}{3}$ into a mixed number.

See Solution

Problem 54398

Divide $1 \frac{1}{6}$ by $2 \frac{5}{8}$ .

See Solution

Problem 54399

Calculate $2 \frac{1}{2} + \frac{9}{10}$ .

See Solution

Problem 54400

Calculate $-\frac{1}{5}+\frac{7}{10}$ .

See Solution

1 ...541 542 543 544 545 546 547 ...660

Math

Problem 54301

Calculate: 13×34=\frac{1}{3} \times \frac{3}{4}=31​×43​=

Problem 54302

Use the equation y=2x+3y = 2x + 3y=2x+3 to fill in the missing yyy values for x=1,3,5,7,9,11x = 1, 3, 5, 7, 9, 11x=1,3,5,7,9,11.

Problem 54303

Create a quadratic equation with real coefficients that has complex solutions. Explain your reasoning. (5.00 Points)

Problem 54304

Jason eats 10 ounces of candy in 5 days. a) How many pounds does he eat daily? (16 ounces = 1 pound) b) How long to eat 1 pound of candy?

Problem 54305

Calculate the variance and standard deviation for the words spoken by toddlers: 27, 45, 38, 42, 4, 10.

Problem 54306

Convert the following mixed numbers to improper fractions: 9) 2132 \frac{1}{3}231​, 10) −467-4 \frac{6}{7}−476​.

Problem 54307

Calculate the monthly payment for each scenario using P=A[1−(1+r)−nr]−1P=A\left[\frac{1-(1+r)^{-n}}{r}\right]^{-1}P=A[r1−(1+r)−n​]−1, where r=r=r= annual rate/12.

Problem 54308

Convert the mixed number 2132 \frac{1}{3}231​ into an improper fraction.

Problem 54309

Find the probability of randomly selecting an apple, orange, banana, plum, or nectarine from a basket with 8 apples, 4 oranges, 3 bananas, 6 plums, and 11 nectarines.

Problem 54310

Calculate the population standard deviation (σ=9.1\sigma=9.1σ=9.1 bpm) and sample standard deviations for three groups of students.

Problem 54311

Jason eats 10 ounces of candy in 5 days. How many pounds does he eat per day? How long to eat 1 pound? (16(16(16 ounces =1=1=1 pound)))

Problem 54312

Find the probability of randomly choosing an apple or plum from a basket with 8 apples, 6 plums, and more fruit. P(P(P( apple or plum )))

Problem 54313

At the start of the week, Barnes & Noble had science and art books in a 2:5 ratio. After selling 20%20\%20% of each type, 2,240 books remained. Find the initial number of each type. Let s=s = s= science books and a=a = a= art books. Show your work.

Problem 54314

Calculate the population standard deviation (σ=9.1\sigma=9.1σ=9.1) and sample standard deviations for given student pulse rates.

Problem 54315

A survey of college students found: 855 drank alcohol, 615 smoked, 193 used drugs. How many students were surveyed?

Problem 54316

A bucket has 9 shapes: triangle, square, rectangle, rhombus, parallelogram, trapezoid, pentagon, hexagon, octagon. Find the probability of selecting each shape.

Problem 54317

Define xxx as a number. The expression for "ten more than a number" is x+10x + 10x+10.

Problem 54318

Calculate the mean, variance, and standard deviation for the words spoken by toddlers: A (33), B (27), C (45), D (38), E (42).

Problem 54319

Calculate the mean number of Hebrew words spoken by 5 toddlers: A (47), B (73), C (56), D (46), E (53).

Problem 54320

Joshua needs 2242 \frac{2}{4}242​ cups of cream for 5 people. How much for 8 people? Show your calculations.

Problem 54321

Find the mean, variance, and standard deviation for the words spoken in Hebrew by toddlers: A=47, B=73, C=56, D=46, E=53.

Problem 54322

How much cream is needed for 8 people if 2142 \frac{1}{4}241​ cups are required for 5 people? Show your work.

Problem 54323

Find the probability that a randomly opened page in a 50-page book is greater than 30 (P(>30)P(>30)P(>30)) and is a prime number (P(prime)P(prime)P(prime)).

Problem 54324

Calculate the monthly payment for each dealership using the formula P=A[1−(1+r)−nr]−1P=A\left[\frac{1-(1+r)^{-n}}{r}\right]^{-1}P=A[r1−(1+r)−n​]−1, where r=r=r= annual rate/12.

Problem 54325

Alsha's expression 2(12)(4⋅3)+6(3+4+5)2\left(\frac{1}{2}\right)(4 \cdot 3)+6(3+4+5)2(21​)(4⋅3)+6(3+4+5) shows how to calculate the net's area. Explain why.

Problem 54326

Find the probability that a spinner lands on a number less than 10 when spun, given 9 out of 12 sections meet this condition.

Problem 54327

Rewrite 24+5424 + 5424+54 using the GCF of 24 and 54 times the sum of two numbers with no common factor from: 2, 2+32+32+3, 3, 3+43+43+4, 4+94+94+9, 6, 88+1888+1888+18, 12+2712+2712+27.

Problem 54328

Jocelyn has \$450. She wants a jacket for \$123 and a necklace for \$293. Can she afford both items? Use estimation.

Problem 54329

Calculate monthly payments, total car costs, and total interest for each dealership scenario using the formula: P=A[1−(1+r)−nr]−1 P=A\left[\frac{1-(1+r)^{-n}}{r}\right]^{-1} P=A[r1−(1+r)−n​]−1 where rrr is the annual rate/12.

Problem 54330

Calculate the mean, degrees of freedom, variance, and standard deviation for the scores of northern U.S. women: 7, 4, 1, 3, 2.

Problem 54331

Find the percentage of scores between 158 and 872872872 in a normal distribution with mean 515 and std dev 119.

Problem 54332

Identify the best measure of variability for the quiz scores: 87,88,89,90,90,90,92,92,93,94,95,96,96,97,98,98,98,99,99,99,100,100,100,100.

Problem 54333

A standardized test's math scores have a mean of 515 and a standard deviation of 119. Find the percentages for the given ranges.

Problem 54334

A snowboard company's profit is modeled by P(x)=x+0.00125x4−3P(x)=x+0.00125 x^{4}-3P(x)=x+0.00125x4−3. Answer questions about the function's type, differences, end behavior, domain, intercepts, and profit for 3000 boards.

Problem 54335

Calculate the mean, degrees of freedom, variance, and standard deviation for the scores: 6, 7, 5, 5, 7, 6.

Problem 54336

Calculate 81−1981 - 1981−19.

Problem 54337

Profit from selling snowboards is modeled by P(x)=x+0.00125x4−3P(x)=x+0.00125 x^{4}-3P(x)=x+0.00125x4−3. Answer questions about function type, differences, end behavior, domain, intercepts, and profit for 3000 boards.

Problem 54338

Determine the best measure of variability for the quiz scores: 87,88,89,90,90,90,92,92,93,94,95,96,96,97,98,98,98,99,99,99,100,100,100,10087,88,89,90,90,90,92,92,93,94,95,96,96,97,98,98,98,99,99,99,100,100,100,10087,88,89,90,90,90,92,92,93,94,95,96,96,97,98,98,98,99,99,99,100,100,100,100.

Problem 54339

Find all factor pairs of 32.

Problem 54340

Calculate: $\frac{1}{3} \times \frac{3}{4}=$

Use the equation $y = 2x + 3$ to fill in the missing $y$ values for $x = 1, 3, 5, 7, 9, 11$ .

Jason eats 10 ounces of candy in 5 days.
a) How many pounds does he eat daily? (16 ounces = 1 pound) b) How long to eat 1 pound of candy?

Convert the following mixed numbers to improper fractions: 9) $2 \frac{1}{3}$ , 10) $-4 \frac{6}{7}$ .

Calculate the monthly payment for each scenario using $P=A\left[\frac{1-(1+r)^{-n}}{r}\right]^{-1}$ , where $r=$ annual rate/12.

Convert the mixed number $2 \frac{1}{3}$ into an improper fraction.

Calculate the population standard deviation ( $\sigma=9.1$ bpm) and sample standard deviations for three groups of students.

Jason eats 10 ounces of candy in 5 days. How many pounds does he eat per day? How long to eat 1 pound? $(16$ ounces $=1$ pound $)$

Find the probability of randomly choosing an apple or plum from a basket with 8 apples, 6 plums, and more fruit. $P($ apple or plum $)$

At the start of the week, Barnes & Noble had science and art books in a 2:5 ratio. After selling $20\%$ of each type, 2,240 books remained. Find the initial number of each type. Let $s =$ science books and $a =$ art books. Show your work.

Calculate the population standard deviation ( $\sigma=9.1$ ) and sample standard deviations for given student pulse rates.

Define $x$ as a number. The expression for "ten more than a number" is $x + 10$ .

Joshua needs $2 \frac{2}{4}$ cups of cream for 5 people. How much for 8 people? Show your calculations.

How much cream is needed for 8 people if $2 \frac{1}{4}$ cups are required for 5 people? Show your work.

Find the probability that a randomly opened page in a 50-page book is greater than 30 ( $P(>30)$ ) and is a prime number ( $P(prime)$ ).

Calculate the monthly payment for each dealership using the formula $P=A\left[\frac{1-(1+r)^{-n}}{r}\right]^{-1}$ , where $r=$ annual rate/12.

Alsha's expression $2\left(\frac{1}{2}\right)(4 \cdot 3)+6(3+4+5)$ shows how to calculate the net's area. Explain why.

Rewrite $24 + 54$ using the GCF of 24 and 54 times the sum of two numbers with no common factor from: 2, $2+3$ , 3, $3+4$ , $4+9$ , 6, $88+18$ , $12+27$ .

Calculate monthly payments, total car costs, and total interest for each dealership scenario using the formula:
$P=A\left[\frac{1-(1+r)^{-n}}{r}\right]^{-1}$
where $r$ is the annual rate/12.

Find the percentage of scores between 158 and $872$ in a normal distribution with mean 515 and std dev 119.

A snowboard company's profit is modeled by $P(x)=x+0.00125 x^{4}-3$ . Answer questions about the function's type, differences, end behavior, domain, intercepts, and profit for 3000 boards.

Calculate $81 - 19$ .

Profit from selling snowboards is modeled by $P(x)=x+0.00125 x^{4}-3$ . Answer questions about function type, differences, end behavior, domain, intercepts, and profit for 3000 boards.

Determine the best measure of variability for the quiz scores: $87,88,89,90,90,90,92,92,93,94,95,96,96,97,98,98,98,99,99,99,100,100,100,100$ .

Huy has 5 dimes and 8 nickels. Calculate the total amount in cents: $5 \times 10 + 8 \times 5$ .

Plot the number $149,273,785$ on a number line and round it to the nearest hundred.

Are the expressions $3c+8$ and $8+c+c+c$ for total corn husks correct? Explain.

Thuy has 5 dimes and 8 nickels. How many cents is that in total? Calculate: $81 - 19 = 62$ .

Calculate the product of the expression: $\frac{14 \frac{2}{3}}{3} \times \frac{18}{18}$ .

Given data: 92, 84, 85, 93, 95, 89, 86, 91. Mean = 89.375.
1. Find sample variance and standard deviation.
2. Find population variance and standard deviation.
3. If 84 is 85, recalculate variance and standard deviation. What are the new values?

Find $n$ and $\Sigma X$ for the frequency distribution: $x$ : 5-2, 4-2, 3-2, 2-4, 1-1.

Find two prime numbers that multiply to equal 55. $p_1 \times p_2 = 55$

Evaluate the expression: $-3 e + 1 + 400 + 20 + 6$ .

Find the product of $2 \frac{5}{8} \times \frac{4}{7}$ in simplest form.

Find the product in simplest form: $2 \frac{5}{8} \times \frac{4}{7}$ .

Multiply the mixed numbers: $4 \frac{2}{11} \times 1 \frac{10}{23}$ .

Solve for $r$ in the equation: $10=-\frac{2}{3} r$ .

Calculate the sum of squares (SS), sample and population variance, and standard deviation for the data: $90, 98, 77, 84, 95, 100, 94, 90$ .

Calculate: $4,509 - 1 \frac{0 \times 4160}{16} + 0 + 9$

What is 1 times $\frac{13}{16}$ ?

A pack of 8 notebooks costs \ $10.80. Find the cost$ n $of each notebook using$ 8n = 10.80 $. What is$ n$?

Calculate $42 \times 3 = ?$ Choose from: 1200, 600, 4.0, 2.0.

Convert the fraction $-\frac{9}{4}$ into a mixed number.

Simplify the expression $x+x+x+x+y+y+3+3$ into an equivalent form using the numbers 1, 2, 3, 4, 5, 6, 7, 9.

Find the value of $j^{3} \div 2 + 3 \cdot k^{2}$ for $j=10$ and $k=4$ . Options: 548, 644, 3,200, 8,048.

At noon, the temperature was $-17^{\circ} \mathrm{F}$ and changed to $-15^{\circ} \mathrm{F}$ . Was it warmer or colder?

Round $0.7 \underline{5} 8$ to the nearest digit. A. $0.75$ B. $0.8$ C. $0.76$ D. $0.7$

Calculate $8 \times \frac{2}{3}$ .