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3 years ago

Look at the square find the value of C

Mathematics

2 answers:

marshall27 [118]3 years ago

8 0

I think it’s 5. the perimeter is 20 and there’s 4 sides of a square so if u divide 20 by 4 you get 5

vitfil [10]3 years ago

5 0

Answer:

Step-by-step explanation:

Perimeter is created by add all sides together

20 / 4 sides = 5

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Find tan A and tan B.

Reika [66]

Answer:

tan A = 2.6 tan B = .38

Step-by-step explanation:

Tangent = side opposite/side adjacent

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3 years ago

How do i solve <br> (2b - 10d) - (-4b)

lisov135 [29]

Answer:

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3 years ago

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Given f(x)=-x-4f(x)=−x−4, find f(4)f(4).

Lady bird [3.3K]

Answer:

1/4 or .25

Explanation

As for this specific question algebra is something I do in my head and skip many steps for however if you want to proof my answer it would be this.

-0.25-16*.25=-0.25-4

-0.25-4=-0.25-4

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3 years ago

What is the value of 3/7 ÷ 5/21 ?

AveGali [126]

Answer:

9/5 brainliest please

Step-by-step explanation:

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3 years ago

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HELP PLEASE:

Anon25 [30]

Answer: Mean of the sample proportion = 74.4

Standard deviation of the samnple proportion is 5.32.

Step-by-step explanation:

Given : A random sample of 120 is taken from a population of 10000.

Let n = 120

Also, from previous survey, it is believed that 62% of the population has an Instagram account.

i.e, population proportion : p = 0.62

Now , the mean of the sample proportin would be :

$\text{Mean}=\mu_{\hat{p}}=np\\\\=120\times0.62=74.4$

i.e. Mean of the sample proportion = 74.4

The standard deviation of the samnple proportion would be :

$\text{standard deviation}=\sigma_{\hat{p}}=\sqrt{np(1-p)}\\\\=\sqrt{120(0.62)(1-0.62)}\\\\=\sqrt{28.272}\\\\=5.31714208951\approx5.32$

Thus , the standard deviation of the samnple proportion is 5.32.

8 0

4 years ago