Tom K.

06/10/23

confidence interval

To test the efficacy of a new cholesterol-lowering medication, 10 people are selected at random. Each has their LDL levels measured (shown below as Before), then take the medicine for 10 weeks, and... more

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Answers •2

Math Calculus

06/10/23

Calculating area -Calculus (disk/washer)

Consider the region R in the first quadrant below the curve y=cos(x), above the curve y=sin(x) and to the right of the y axis.a) Find the x and y coordinates of the intersection point of the 2... more

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Math Calculus Precalculus

01/02/23

How to confirm this is true?

I can only use: reciprocal identities quotient identities Pythagorean identities sum and difference formulas double angle formulas power reducing formulas half angle formulas product to sum... more

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Answers •3

Statistics

12/31/22

I want to confirm if my answer is correct

1- The records of a computer retail store show that out of the 100 customers who purchased a desktop computer last month, all but 28 also purchased a service plan that extends the... more

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Answers •2

Math Statistics

10/21/22

What is the average number of children Amy and Dan must have? (Integer or decimal. Do not round.)

Amy and Dan want to have both a male and a female child. If they decide to continue to have children until they have one of each gender, what would the average number of children be? Assume that... more

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Answers •2

Statistics Probability

10/21/22

Find population mean probability

Find the probability: We have N persons and Y boxes. What is the mean person’s probability of choosing the same box with another one? (I want the probability of the whole population, not the case... more

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Answers •1

Statistics

10/21/22

I am very confused how to approach this question, I would appreciate a detailed step by step response if possible thank you : )

Andy is a restaurant owner. He believes 75% of his customers are satisfied with the food quality of his restaurant. From a random sample of 85 customers, what are the following probabilities?... more

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Probability

10/20/22

7th grade math probability

Drew rolls 2 number cubes 75 times. Is it likely that she will get a sum of 3 more than 5 times? Explain

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Answers •1

Statistics

09/11/22

Stat question about CDs

With one method of a procedure called acceptance sampling, a sample of items is randomly selected without replacement and the entire batch is accepted if every item in the sample is okay. The ABCD... more

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Answers •1

Calculus

09/11/22

Vector Equations

Consider the planes 5x+2y+2z =1 and 5x+2z= 0. How do you find the vector equation for the line of intersection of the two planes?I was able to find the unique point on the y-axis which is on both... more

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Answers •1

Calculus

09/11/22

Distance from Point to 3D Plane

Find the distance from the point Q = (1,3,1) to the plane 2x+5y-z=8.I got 17/ sqrt(30) but this is incorrect. If you could explain the steps you take to get to your answer, it would be appreciated!

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Answers •1

Geometry

08/28/22

On a number line, point A is located at -7 and point B is located at -3. Find the point on the number line that is 2/3 of the distance from A to B. Write as an integer or fraction.

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Answers •1

Math Finite Math

08/28/22

Finite math problem, please help me understand

Suppose the universe U has two subsets C and D. n(C') = 90, n(C) = 38, n(D') = 52.How many elements are in D? n(D) =

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Answers •1

Algebra 1

08/28/22

Randy had grades of 85, 92, 96 and 89 on his last 4 math tests. What grade does he need on bis next test to have an average of 92%

HELP MEEE

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Answers •2

Math Calculus Precalculus

08/27/22

Is the improper integral convergent or divergent?: A.) (ln(x+1))/x^2 dx (with lower bound, 0 and upper bound, 1) B.) (ln(x+1))/x^2 dx (with lower bound, 1 and upper bound, infinity)

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Answers •2

Calculus

03/31/22

An island is 1 mile due north of its closest point along a straight shoreline. A visitor is staying at a cabin on the shore that is 15 miles west of that point.

The visitor is traveling from the cabin to the island. The visitor swims at the rate of 2.5 mph and runs at a rate of 6 mph. How far should the visitor run before swimming to minimize the time it... more

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Math Statistics

03/27/22

Business Statistics.

Consider the hypothesis test below.H0 : p1 -p2 < or = 0Ha : p1-p2 > 0The following results are for independent samples taken from the two populations.sample 1 sample 2n1 = 200 n2 = 300‾p1=... more

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Math Statistics College Algebra

03/12/22

Answer the following below using binomial distribution.

According to Masterfoods, the company that manufactures M&M’s, 12% of peanut M&M’s are brown, 15% are yellow, 12% are red, 23% are blue, 23% are orange and 15% are green. You randomly... more

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Elementary Math

03/01/22

What is the most the pen could count

Jim and Barbara each want to buy the same kind of pen. Jim still needs 24 cents to buy the pen and Barbara still needs 4 cents to buy the pen. If they combine their money, they still do not have... more

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Calculus

01/30/22

help me please, I studies tons of times but I cannot find the answer to this question

A conical water tower with vertex down has a radius of 10 ft at the top and is 22 ft high. If water flows into the tank at a rate of 28 ft3/min, how fast is the depth of the water increase when the... more

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Answers •1

Probability And Statistics Permutations And Combinations

01/28/22

A football team consisting of 2 forwards, 4 midfielders, 4 defenders and 1 goalkeeper is to be selected from a squad of

23 footballers comprising 5 forwards, 8 midfielders, 7 defenders and 3 goalkeepers. How many different teams can be selected?

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Answers •1

Probability And Statistics Purmutations And Combinations

01/28/22

Four letters are picked at random from the word THURSDAY. What is the probability that there is at least one vowel among the letters?

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Answers •1

Probability

01/28/22

Can you prove this? Using Boolean algebra and rules of probability

P(A + B) = P(A) + P(B) − P(A B).

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Answers •1

Precalculus

01/16/22

Use synthetic division

Use synthetic division to show that x is a solution of the third-degree polynomial equation, and use the result to factor the polynomial completely. List all real solutions of the equation. (Enter... more

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Discrete Math Discrete Mathematics Finite Math

01/13/22

Thirty points are placed equally spaced on a circle, and the points are labeled with the integers from 1 to 30 in random order.

Prove that no matter what the arrangement of labels is, there are three successive integers whose sum is at least 45.

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Answers •1

confidence interval

Calculating area -Calculus (disk/washer)

How to confirm this is true?

I want to confirm if my answer is correct

What is the average number of children Amy and Dan must have? (Integer or decimal. Do not round.)

Find population mean probability

I am very confused how to approach this question, I would appreciate a detailed step by step response if possible thank you : )

7th grade math probability

Stat question about CDs

Vector Equations

Distance from Point to 3D Plane

On a number line, point A is located at -7 and point B is located at -3. Find the point on the number line that is 2/3 of the distance from A to B. Write as an integer or fraction.

Finite math problem, please help me understand

Randy had grades of 85, 92, 96 and 89 on his last 4 math tests. What grade does he need on bis next test to have an average of 92%

Is the improper integral convergent or divergent?: A.) (ln(x+1))/x^2 dx (with lower bound, 0 and upper bound, 1) B.) (ln(x+1))/x^2 dx (with lower bound, 1 and upper bound, infinity)

An island is 1 mile due north of its closest point along a straight shoreline. A visitor is staying at a cabin on the shore that is 15 miles west of that point.

Business Statistics.

Answer the following below using binomial distribution.

What is the most the pen could count

help me please, I studies tons of times but I cannot find the answer to this question

A football team consisting of 2 forwards, 4 midfielders, 4 defenders and 1 goalkeeper is to be selected from a squad of

Four letters are picked at random from the word THURSDAY. What is the probability that there is at least one vowel among the letters?

Can you prove this? Using Boolean algebra and rules of probability

Use synthetic division

Thirty points are placed equally spaced on a circle, and the points are labeled with the integers from 1 to 30 in random order.

Still looking for help? Get the right answer, fast.

OR

Tom K.

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ABCya

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Emmersion

confidence interval

Calculating area -Calculus (disk/washer)

How to confirm this is true?

I want to confirm if my answer is correct

What is the average number of children Amy and Dan must​ have? (Integer or decimal. Do not round.)

Find population mean probability

I am very confused how to approach this question, I would appreciate a detailed step by step response if possible thank you : )

7th grade math probability

Stat question about CDs

Vector Equations

Distance from Point to 3D Plane

On a number line, point A is located at -7 and point B is located at -3. Find the point on the number line that is 2/3 of the distance from A to B. Write as an integer or fraction.

Finite math problem, please help me understand

Randy had grades of 85, 92, 96 and 89 on his last 4 math tests. What grade does he need on bis next test to have an average of 92%

Is the improper integral convergent or divergent?: A.) (ln(x+1))/x^2 dx (with lower bound, 0 and upper bound, 1) B.) (ln(x+1))/x^2 dx (with lower bound, 1 and upper bound, infinity)

An island is 1 mile due north of its closest point along a straight shoreline. A visitor is staying at a cabin on the shore that is 15 miles west of that point.

Business Statistics.

Answer the following below using binomial distribution.

What is the most the pen could count

help me please, I studies tons of times but I cannot find the answer to this question

A football team consisting of 2 forwards, 4 midfielders, 4 defenders and 1 goalkeeper is to be selected from a squad of

Four letters are picked at random from the word THURSDAY. What is the probability that there is at least one vowel among the letters?

Can you prove this? Using Boolean algebra and rules of probability

Use synthetic division

Thirty points are placed equally spaced on a circle, and the points are labeled with the integers from 1 to 30 in random order.

Still looking for help? Get the right answer, fast.

OR

Tom K.

What is the average number of children Amy and Dan must have? (Integer or decimal. Do not round.)