Question

Solve the formula V=pir^2h for r PLEAASSSEEE HELP

Answer 1

Answer:

B

Step-by-step explanation:

So we have the formula:

$V=\pi r^2h$

And we want to solve it for r.

So, let's first divide both sides by π and h. This will cancel out the right side:

$r^2=\frac{V}{\pi h}$

Now, take the square root of both sides:

$r=\sqrt{\frac{V}{\pi h}}$

And we're done!

Our answer is B.

I hope this helps!

Answer 2

Answer:

B. $r=\sqrt{\frac{v}{\pi h}$

Step-by-step explanation:

We are given the formula:

$V=\pi r^2 h$

and asked to solve for $r$. Therefore, we must isolate $r$ on one side of the equation.

$\pi$ and $h$ are both being multiplied by r². The inverse of multiplication is division. Divide both sides of the equation by $\pi h$.

$\frac{v}{\pi h} =\frac{\pi r^2 h}{\pi h}$

$\frac{v}{\pi h} =r^2$

r is being squared. The inverse of a square is a square root. Take the square root of both sides of the equation.

$\sqrt{\frac{v}{\pi h}} =\sqrt{r^2}$

$\sqrt{\frac{v}{\pi h}}=r$

$r=\sqrt{\frac{v}{\pi h}$

Therefore, the correct answer is B. $r=\sqrt{\frac{v}{\pi h}$