## bumblebee3 A spherical water balloon has a radius of 6 inches. How many cubic inches of water will it hold? a. 288ð in.3 b. 78ð in.3 c. 216ð in.3 d. 144ð in.3 8 months ago 8 months ago

1. Hero

$V_{\text{sphere}} = \frac{4\pi r^3}{3}$

2. bumblebee3

@Hero I got 904.7808

3. bumblebee3

What does this symbol mean? ð

4. Hero

pi I suppose.

5. theEric

I got the same volume formula and my volume on the windows calculator was $$904.7786842338604526772412943845$$ using its estimation of $$pi$$. The exact answer is $$288\ \pi$$.

6. Hero

288 pi = 904.7808

7. theEric

And so I agree with @Hero again. Maybe it was just an issue with the computer code. I don't see why anyone would substitute a symbol for $$\pi$$ if that's what that means.

8. theEric

And the units are $$[\text{in.}^2]$$

9. theEric

So, that looks right..

10. Hero

cubic is in^3

11. bumblebee3

Thank you so much I get it now! =)

12. theEric

:)

13. theEric

Pfft, $$[\text{in}^3]$$, you're right again.