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3 years ago

6

Is this correct? I will give brainliest to the correct answer

2 answers:

tankabanditka [31]3 years ago

5 0

Oh yeah, now give me branliest.

Readme [11.4K]3 years ago

5 0

Answer:

so what you need to do here to check your work is to find 14 and 20 squared (which are 196 and 400) now your equation is 196 + 400 = c^2. now, you combine the like terms to make 596 = c^2. all you have to do now is find the square root of 596 (which is 24.4 when rounded to the nearest tenth). so yes, you are correct.

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Exercise 6.13 presents the results of a poll evaluating support for the health care public option in 2009, reporting that 52% of

sleet_krkn [62]

Answer:

A sample size of 6755 or higher would be appropriate.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

The margin of error M is given by:

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

90% confidence level

So $\alpha = 0.1$ , z is the value of Z that has a pvalue of $1 - \frac{0.1}{2} = 0.95$ , so $Z = 1.645$ .

52% of Independents in the sample opposed the public option.

This means that $p = 0.52$

If we wanted to estimate this number to within 1% with 90% confidence, what would be an appropriate sample size?

Sample size of size n or higher when $M = 0.01$ . So

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

$0.01 = 1.645\sqrt{\frac{0.52*0.48}{n}}$

$0.01\sqrt{n} = 0.8218$

$\sqrt{n} = \frac{0.8218}{0.01}$

$\sqrt{n} = 82.18$

$\sqrt{n}^{2} = (82.18)^{2}$

$n = 6754.2$

A sample size of 6755 or higher would be appropriate.

3 0

3 years ago

Two angles are complementary. one angle is 63.5 degrees. what is the other angle?

marusya05 [52]

Other angle = 90° - 63.5° = 26.5°

8 0

3 years ago

Read 2 more answers

Simplify (-7/8)(-3/4).<br> O 6/7<br> o 2132<br> 0-2132

Andrews [41]

(-7/8)(-3/4)

multiply the numerators together

(-7)(-3)=21

multiply the denominators together

(-8)(-4)=32

answer:

21/32

7 0

3 years ago

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The length of a rectangle is twice its width.

Anna11 [10]

Answer:

vvvIf the perimeter of the rectangle is 60 in, find its area.

Step-by-step explanation:

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3 years ago

tiffany spwnt 4/7 of her money on a teddy bear if the teddy bear costs $24 how much money did she have at first

Kaylis [27]

She had 42 dollars.

(4/7 of 42 is 24 dollars)

6 0

3 years ago