Please help.

The radius of a cone-shaped tank is 4 feet less than its height. If the height of the tank is (x - 3) feet, the expression below shows the volume of the tank:

1 over 3π (x - 7)2 (x - 3)

What does the factor 1 over 3(x - 7) represent?

Question

Please help.

The radius of a cone-shaped tank is 4 feet less than its height. If the height of the tank is (x - 3) feet, the expression below shows the volume of the tank:

1 over 3π (x - 7)2 (x - 3)

What does the factor 1 over 3(x - 7) represent?

anonymous · Answer

The total surface area of the tank
One third of the radius of the tank
One third of the height of the tank
The total area of the base of the tank

anonymous · Answer

hey can you help me with this one @rosesmarie its the last question

anonymous · Answer

@OregonDuck @Peaches15

anonymous · Answer

@peachpi

anonymous · Answer

hello?

rhr12 · Answer

http://openstudy.com/study#/updates/52dcd915e4b003c643a07088

rhr12 · Answer

take a look at it

anonymous · Answer

i should have asked, if $(x-3)$ is the height of tank, then $(x-7)$ is what? 

height = x-3 radius = h-4 = x-3-4 = x - 7

that means, (x-7) is the radius of tank so $\frac{1}{3}(x-7)$ is One third the radius of tank