3 years ago

The formula for finding the area of a circle is A=pi r 2.Solve the formula for r

Mathematics

1 answer:

olga55 [171]3 years ago

3 0

Answer:

See Explanation

Step-by-step explanation:

$A = \pi {r}^{2} \\ \\ \frac{A}{\pi} = {r}^{2} \\ \\ \huge \red{ \boxed{ r = \sqrt{\frac{A}{\pi} } }}$

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3 years ago

5.7 as an improper fraction

harkovskaia [24]

Answer:

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Step-by-step explanation:

When dividing a number by 10 the decimal moves one place to the left. When we take 57 and divide it by 10, we get 5.7

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2 years ago

20 out of 50 rolls of a number cube resulted in a 2 being rolled.Based on this imformation, if the cube was rolled 220 times,how

jolli1 [7]

Answer:

88 rolls of 2.

Step-by-step explanation:

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2 years ago

Simplify the square root of -121?

poizon [28]

Answer:

11<em>i</em>

Step-by-step explanation:

first you have to get a postive root.

$\sqrt{-121} \\ \sqrt{-1} \sqrt{121} \\$

then you solve the square roots from there, keeping in mind the imaginary number answer to the square root of -1, <em>i</em>.

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8 0

2 years ago

Read 2 more answers

What is (1, -2) and (2, 2) as a linear equation

frutty [35]

Answer:

y=4

Step-by-step explanation:

y=2+2/2-1

y=4

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2 years ago