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frez [133]
3 years ago
7

Helppppppppppppppppppp ill mark you brainlist

Mathematics
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
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