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Math Help Statistics Measures Of Variation

12/19/18

The graph illustrates a normal distribution for the prices paid for a particular model of HD television. The mean price paid is $1600 and the standard deviation is $90.

1330,1420,1510,1600,1690,1780,1870Distribution of Prices A) What is the approximate percentage of buyers who paid between $1510 and $1690?___________%B) What is the approximate percentage of buyers... more

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Math Help Math Statistics Mathematics

12/19/18

In 2011 the U.S. Department of Transportation reported with 95% confidence that the average length of a motor vehicle trip in the United States was 9.72 miles with a margin or error of 0.22 miles.

With 95% confidence the authors of the report are claiming that the true average length of a motor vehicle trip in the United States is between _________ and _________ milesThe level of confidence... more

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Math Help Statistics Confidence Intervals

12/19/18

You measure 29 backpacks' weights, and find they have a mean weight of 43 ounces. Assume the population standard deviation is 4 ounces.

Based on this, what is the maximal margin of error associated with a 99% confidence interval for the true population mean backpack weight.± ____________ ounces

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Math Help Statistics Normal Probability Distribution

12/19/18

Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C.

A single thermometer is randomly selected and tested. Find P94, the 94-percentile. This is the temperature reading separating the bottom 94% from the top 6%.P94 = _______°C

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Math Help Statistics Measures Of Variation

12/19/18

The heights of American adult males are normally distributed with a mean of 177 cm and a standard deviation of 7.4 cm. Find the range of heights that contain approximately

(a) 68% of the data______ cm -- ______ cm(b) 95% of the data______ cm -- ______ cm(c) 99.7% of the data_______cm -- _______ cm

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Math Help Chemistry Word Problem Chemistry Word Problem

12/06/18

Chemistry word problem, please help!

While you are doing heavy work, your heart pumps up to 25.0 L of blood per minute. Your brain gets about 3-4% by volume of your blood under these conditions. What volume of blood in liters is... more

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Math Help

12/06/18

How long would 8 pieces if rope be if the rope was 32 yards long?

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Math Help Algebra 1 Algebra

11/30/18

How would you graph it? :[

How would you graph 2x-3y<12

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Math Help Algebra 1 High School Math Algebra 1 Help

11/30/18

write the equatuon, in point-slope form, that has a slope of -3/5 and goes through the point (5,-2)

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Math Help

11/15/18

The recipe below shows the amount of each ingredient required to make four servings of pasta. Base d on this information, determine the amount of each ingredient needed to make 10 servings.

1 3/4 cups, 2/3 cups milk and 2 1/2 cups pasta

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Math Help Statistics Sat Math Math Word Problem

11/08/18

Math Word Problem

Each day, you deposit $4.47 into a bank account whose annual rate is 1% with daily compounding. How much interest will you have earned after 11 years?Round your answer to the nearest dollar.

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Math Help Math

10/26/18

Problem Solving

Two cars left Sydney for Melbourne. The first car left at 2pm and averaged 80km/h. The second car left at 3pm and averaged 100km/h. At what time did the two cars meet?(I can solve it the long was... more

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Math Help Math Sat Math Math Word Problem

10/26/18

Math Question Help

What annual interest rate is required for a debt to grow by 64% in 7 years if interest compounds continuously?Round your answer to the nearest tenth of a percent.

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Math Help

10/26/18

Financial literacy

Julian earns $14.50 per hours .His company deducts 23% of his pay each week for taxes . Julian uses the expression 0.77 (24.50 h) to compute his earnings after taxes for the hours h he works . What... more

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Math Help

10/25/18

How to solve this problem

What is 5 1/2 - 7 ? Adding and subtracting rationals

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Math Help

10/25/18

Four more than three times a number is equal to 27

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Math Help Math Geometry Proofs

10/22/18

Find the statements and Reasons to this proof

Premises:≈P→(Q→≈W)≈S→Q≈TP→TW→SConclusion:W→SI don't really understand how to do this and I have a test coming up so any help would be greatly appreciated.

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Math Help Math Word Problem

10/14/18

Math Problem Help

Karen wants to have $24093 in her investment account in 7 years. If her bank offers an annual compound interest rate of 1.3% with monthly compounding, how much should she deposit today?Round your... more

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Math Help Math Word Problem

10/14/18

Math Problem Help: How do you do this?

Suppose a $13262 loan has an annual compound interest rate of 5.7% with semi-annual compounding (twice per year). If the loan's term is 8 years, what is its future value? Round your answer to the... more

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Math Help Math

10/14/18

A point is moving along the graph of x cubed y squared equals 1600. When the point is at (4,5), its x-coordinate is changing at the rate of negative 3 units per minute.

How fast is the y-coordinate changing at that moment?

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Math Help Math Derivative

10/14/18

A 7.00-ft-tall man walks at 6.00 ft/s toward a street light that is 18.0 ft above the ground. At what rate is the end of the man's shadow moving when he is 15.0 ft from the base of the light?

Use the direction in which the distance from the street light increases as the positive direction.

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Math Help

10/13/18

lucy walks 2 2/3 kilometers in 1/2 hour. How long will it take her to walk 6 kilometers

Please help solve this and show why

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Math Help Compound Interest Math Problem

10/10/18

Math Problem Help

What annual compound interest rate is required for the debt of a compound interest loan to grow by 42% in 14 years?Round your answer to the nearest tenth of a percent.

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Math Help Compound Interest Math Problems

10/10/18

Compound Interest Loan

How many years would it take for the debt of a compound interest loan to grow by 46% if the annual compound interest rate is 2.9%?Round your answer to the nearest tenth of a year.

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Math Help Compound Interest Math Problems

10/10/18

Compound Interest Rates

Compute the annual compound interest rate required to double the size of a debt in 11 years. Round your answer to the nearest tenth of a percent.

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The graph illustrates a normal distribution for the prices paid for a particular model of HD television. The mean price paid is $1600 and the standard deviation is $90.

In 2011 the U.S. Department of Transportation reported with 95% confidence that the average length of a motor vehicle trip in the United States was 9.72 miles with a margin or error of 0.22 miles.

You measure 29 backpacks' weights, and find they have a mean weight of 43 ounces. Assume the population standard deviation is 4 ounces.

Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C.

The heights of American adult males are normally distributed with a mean of 177 cm and a standard deviation of 7.4 cm. Find the range of heights that contain approximately

Chemistry word problem, please help!

How long would 8 pieces if rope be if the rope was 32 yards long?

How would you graph it? :[

write the equatuon, in point-slope form, that has a slope of -3/5 and goes through the point (5,-2)

The recipe below shows the amount of each ingredient required to make four servings of pasta. Base d on this information, determine the amount of each ingredient needed to make 10 servings.

Math Word Problem

Problem Solving

Math Question Help

Financial literacy

How to solve this problem

Four more than three times a number is equal to 27

Find the statements and Reasons to this proof

Math Problem Help

Math Problem Help: How do you do this?

A point is moving along the graph of x cubed y squared equals 1600. When the point is at ​(4​,5​), its​ x-coordinate is changing at the rate of negative 3 units per minute.

A 7.00​-ft-tall man walks at 6.00 ​ft/s toward a street light that is 18.0 ft above the ground. At what rate is the end of the​ man's shadow moving when he is 15.0 ft from the base of the​ light?

lucy walks 2 2/3 kilometers in 1/2 hour. How long will it take her to walk 6 kilometers

Math Problem Help

Compound Interest Loan

Compound Interest Rates

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A point is moving along the graph of x cubed y squared equals 1600. When the point is at (4,5), its x-coordinate is changing at the rate of negative 3 units per minute.

A 7.00-ft-tall man walks at 6.00 ft/s toward a street light that is 18.0 ft above the ground. At what rate is the end of the man's shadow moving when he is 15.0 ft from the base of the light?