3 years ago

Math question:

Mathematics

1 answer:

Vera_Pavlovna [14]3 years ago

4 0

Answer: 102

Step-by-step explanation:

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Answer:

$r=\sqrt{\frac{A}{\pi}}$

Step-by-step explanation:

Given:

The area 'A' of a circle with radius equal to 'r' is given as:

$A=\pi r^2$

In order to rewrite the given formula in terms of radius 'r', we need to isolate 'r'.

Dividing both sides by π, we get:

$\frac{A}{\pi}=\frac{\pi r^2}{\pi}$

As $\frac{\pi}{\pi}=1$ , the above equation becomes:

$r^2=\frac{A}{\pi}$

Taking square root both the sides, we get:

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

We neglect the negative result while taking square root as the radius can't be a negative number.

Thus, the formula for radius 'r' in terms of area 'A' is given as:

$r=\sqrt{\frac{A}{\pi}}$

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3 years ago

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Step-by-step explanation:

The degree of the equation is 1.

The reason it's not A is because |x| can be represented as a piecewise function composed of 2 different linear functions.

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Step-by-step explanation:

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Step-by-step explanation:

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