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2 years ago

The first pentagon is dilated to form the second pentagon.

Mathematics

1 answer:

kolezko [41]2 years ago

8 0

Answer:

Step-by-step explanation:

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A large on-demand video streaming company is designing a large-scale survey to determine the mean amount of time corporate execu

Diano4ka-milaya [45]

Answer:

$n=(\frac{2.262(3)}{0.25})^2 =736.79 \approx 737$

So the answer for this case would be n=737 rounded up to the nearest integer

Step-by-step explanation:

We have the following info given:

$\bar X = 12$ the sample mean

$s = 3$ the sample deviation

$n = 10$ represent the sample size

The degrees of freedom are given by:

$df =n-1 =10-1=9$

The margin of error is given by this formula:

$ME=t_{\alpha/2}\frac{s}{\sqrt{n}}$ (a)

And on this case we have that ME =0.25 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=(\frac{t_{\alpha/2} s}{ME})^2$ (5)

The confidence level is 95% and the critical value for this case would be given by $t_{\alpha/2}=2.262$ , replacing into formula (5) we got:

$n=(\frac{2.262(3)}{0.25})^2 =736.79 \approx 737$

So the answer for this case would be n=737 rounded up to the nearest integer

7 0

2 years ago

I need help with question number 2 please !!

Tatiana [17]

Answer:

Step-by-step explanation:

15.5884573 i

5 0

2 years ago

The length of a rectangle is 3 times the width. The perimeter is 96m. What is the length

Jlenok [28]

Answer:

Length =3×12 =36 m.

8 0

2 years ago

A=1/2 h(x+y) make x the subject

insens350 [35]

Answer:

Step-by-step explanation:

A =1/2 *h (x+y)

A =hx+hy/2

A*2 =hx+hy

2A =hx+hy

2A - hy = hx

(2A -hy)/h = x

6 0

2 years ago

Read 2 more answers

A survey found that 12 out of 30 people preferred bacon over sausage. According to this survey, what percent of people pefer bac

Yakvenalex [24]

Answer: 40%

Step-by-step explanation:

first you symplify your fraction:

12/30 = 2/5

then divide your numerator from your denominator:

2÷5 =0.4

then you convert your decimal into a percentage:

0.4×100=40%

8 0

2 years ago