Answer:
r = 9.8475 in
Step-by-step explanation:
We assume that the ball is spherical.
The volume of a spherical ball is:

We know that:

Then
![r ^ 3 = \frac{3*4000}{4(\pi)}\\\\r = \sqrt[3]{\frac{3*4000}{4(\pi)}}\\\\r = 9.8475in](https://tex.z-dn.net/?f=r%20%5E%203%20%3D%20%5Cfrac%7B3%2A4000%7D%7B4%28%5Cpi%29%7D%5C%5C%5C%5Cr%20%3D%20%5Csqrt%5B3%5D%7B%5Cfrac%7B3%2A4000%7D%7B4%28%5Cpi%29%7D%7D%5C%5C%5C%5Cr%20%3D%209.8475in)
Below is the graph of the cubic function
E=Pt where e= energy P= power t= time
E=1.200kiowatt/15 minutes
E={1200/100*1000}/15
E=800 watt/minute
Daddy remember when you made my butt sore
Hello!
So you figure that 7/10-5/10=2/10 that leave you with 1/5 left over. So if you take that into effect, all you have to do it multiply those 3 gallons by 5. Which gives you 15. So, your answer would be 15 gallons.
I hope this helped!
I am, yours most sincerely
SuperHelperThingy