Question

Solve for r:
B=dPIEr^2

Answer 1

C

Explanation:

So we have the equation:

`B=d\pi r^2`

And we want to solve for r.

So first, isolate the r variable. Divide both sides by dπ. So:

`(B)/(d\pi)=(d\pi r^2)/(d\pi)`

The right side cancels:

`(B)/(d\pi)=r^2`

Take the square root of both sides:

`r=\sqrt(B)/(d\pi)`

We can rearrange the terms:

`r=\sqrt(B)/(\pi d)`

Our answer is C.