Question

Solve the equation
( i attached an image of the problem)

Answer 1

B

Explanation:

So they want to get r alone. In order to do that, we would have to do the opposite of what's shown, and we would do it to both sides of the equal sign. As follows...

A = (pi)(r)^2

I would first divide by pi, since it's multiplying pi originally. And we'll do it on both sides

A/Pi = r^2

Now the opposite of squared is square root, so we'll square root both sides

✓A/Pi = r

Giving us B

Answer 2

B is the right answer....

B

`.a = \sqrt{ (a)/(\pi) } \: \: is \: the \: right \: answer..`