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3 years ago

PLZ HELP ITS DUE NOW NO LINKS

Mathematics

1 answer:

Leni [432]3 years ago

6 0

Answer:

show the options

Step-by-step explanation:

Brainliest?

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Does anyone understand how to do this ?

Drupady [299]

Answer:

1. y= 3√2, x=3

2. y= 14, x= 7√3

3. y= 4, x=4√3

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3 years ago

A tire manufacturer is interested in testing the fuel economy for two different tread patterns. Tires of each tread type are dri

Minchanka [31]

Using the t-distribution, it is found that the 99% confidence interval for the difference is (0.058, 3.462).

We are given the standard deviation for the samples, hence, the t-distribution is used to solve this question.

The standard errors are given by:

$s_A = \frac{1.79}{\sqrt{18}} = 0.4219$

$s_B = \frac{1.95}{\sqrt{18}} = 0.4596$

For the distribution of differences, the mean and the standard error are given by:

$\overline{x} = \mu_A - \mu_B = 23.95 - 22.19 = 1.76$

$s = \sqrt{0.4219^2 + 0.4596^2} = 0.6239$

The interval is given by:

$\overline{x} \pm ts$

The critical value for a two-tailed 99% confidence interval with 18 + 18 - 2 = 34 df is t = 2.7284.

Then:

$\overline{x} - ts = 1.76 - 2.7284(0.6239) = 0.058$

$\overline{x} + ts = 1.76 + 2.7284(0.6239) = 3.462$

The 99% confidence interval for the difference is (0.058, 3.462).

For more on the t-distribution, you can check brainly.com/question/16162795

3 0

3 years ago

Help pls show work if needed

Nutka1998 [239]

Each friend will get 4 carrots. Add up 7,5,4,1,3 and divide by 5

8 0

3 years ago

What is the answer to y=16

lord [1]

Y = 16.. If you are solving for Y then the answer is 16. Unless you didn't post the whole question, then I believe that is your answer.

3 0

4 years ago

Read 2 more answers

PLEASE HELP!! Please show your work in explanation no nonsense or blank answers please ;)

krok68 [10]

Answer:

r = 4.908

Step-by-step explanation:

V = 885

height (given in the picture) = 11.7

V = $\pi r^2$ h

V = (3.14)( $r^2$ )(h)

885 = (3.14)( $r^2$ )(11.7)

885/3.14/11.7 = $r^2$

Take the square root and you get 4.908.

8 0

4 years ago