The volume V of a right circular cone is V = (1/3)(pi)(r^2)(h). If the height is TWICE the radius, express the volume V as a function of r.

NOTE: What is a more simple way to say:

"...express the volume V as a function of r."

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- Jan 21st 2007, 06:05 AMsymmetryRight Circular Cone Volume
The volume V of a right circular cone is V = (1/3)(pi)(r^2)(h). If the height is TWICE the radius, express the volume V as a function of r.

NOTE: What is a more simple way to say:

"...express the volume V as a function of r." - Jan 21st 2007, 06:29 AMearboth
- Jan 22nd 2007, 02:24 PMsymmetryok
Understood but tell me, what is a more simple way to say:

"...express the volume V as a function of r"? - Jan 24th 2007, 11:55 AMearboth
- Jan 24th 2007, 02:01 PMsymmetryok
Tell me, are you a math professor?

- Jan 24th 2007, 02:04 PMdclineV as a function of r
"express V as a function of r" pretty much means make an equation with only V on one side of the equals sign, and r as the only variable on the other.

i.e. V = (2 / 3) * pi * r^3 (functions are usually written "f(r) = (2/3)*pi*r^3")

but NOT

V = (1 / 3) * pi * r^2 * h