Question

What is the volume of a sphere with a radius of 9?

Its not V = 3053.63 so... idk

A. 729pi units3
B. 648pi units3
C. 972pi units3

Answer 1

The formula for the volume of a sphere is 4*pi*a^3/3

Answer 2

If the radius is a, 4*pi*3^3/3

Answer 3

In these problem, they didn't calculate pi .-.

Answer 4

Pi is just 3.14 simply

Answer 5

Interesting.

Using the correct equation for volume, you get 3053.63, just as you did.

If you decide to set pi = 1, you get 972.

Answer 6

The equation to find the volume of a sphere is the following

pi*radius squared (to the second power)*4

So, the equation is 3.14*4 to the second power (16)*4

Pretty sure that's the right equation o-o

Answer 7

4(3.14)*(9^3)/3

Answer 8

Oh, I see. They left is as "pi." Time for me to stop for the night.

Answer 9

My answer for V is 3052.08

Answer 10

Like I tried the normal way of solving it using the formula for a sphere and got 3053.63
Then I tried not calculating pi and got some number thats not a choice ._.
and know idk D:

Answer 11

9^3 = 729 so the answer is going to have 729 in it

Answer 12

That should help

Answer 13

Yeah, the answers are in the form "# Pi"
So, don't put in a number for pi. Leave it as "pi."

Answer 14

I was working backwards from the problem

Answer 15

The asnwer was 972 guys o:but thanks for helping out tho! (:

Answer 16

I am surprised by that... 972

Answer 17

\[V = \frac{4}{3} \pi r^3 = \frac{4}{3} \pi *9^3= 972 \pi\]
The answers are in this form. As written, "972pi"
So, just combine all the other stuff. Leave pi as "pi"

Answer 18

Oh I see what I did... didn't multiply by 4/3