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3 years ago

7

Helppppppppppppppppppp ill mark you brainlist

1 answer:

erastovalidia [21]3 years ago

5 0

c^2 = a^2 + b^2

c^2 = 16^2 + 20^2

c^2 = 256 + 400

c^2 = 756

Now, square root both sides.

<h2><em><u>c = 27.5 in</u></em></h2>

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I need help dgdghdhddhdsjsjs

iren2701 [21]

Answer:

- 1.9f - 18

Step-by-step explanation:

$- 2.7f + 0.8f - 12 - 6 \\ = - 1.9f - 18 \\$

3 0

3 years ago

Heights for women are bell-shaped with a mean of 65 inches and standard deviation of 2.5 inches. If a random sample of 16 women

loris [4]

Answer:

μ= 65 inches; σ= 0.625 inch

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed(bell-shaped) random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

In this problem, we have that:

$\mu = 65, \sigma = 2.5$

By the central limit theorem, the sample of 16 will have:

$\mu = 65, \sigma = \frac{2.5}{\sqrt{16}} = 0.625$

So the correct answer is:

μ= 65 inches; σ= 0.625 inch

8 0

2 years ago

Alfred drove 114 miles in 3 hours. If Alfred drove at a constant rate, how fast did he drive in miles per hour?

Andreyy89

38 miles per hour.......

6 0

2 years ago

Read 2 more answers

24a - 22 = -4(1-6a)<br><br> solve for a

maw [93]

Answer:

No solution

Step-by-step explanation:

24a-22= -4(1-6a)

24a-22= -4+24a

-24a -24a

0-22= -4

-22= -4

8 0

3 years ago

Read 2 more answers

There is a circle with a center of 0,0 on a coordinate plane. There is one point on the circle's circumference in which the x:y

abruzzese [7]

Answer:

Step-by-step explanation:

Suppose the radius is 1. The parametric equations for the circle are

x = cosθ

y = sinθ

x:y = 3:1

tanθ = ⅓

cosθ = 3/√(1²+3²) = 3/√10

sinθ = 1/√10

The solutions are (3/√10, 1/√10) and (-3/√10, -1/√10).

6 0

3 years ago