Sand falls from an overhead bin, accumulating in a conical pile with a radius that is always three times its height. if the sand falls from the bin at a rate of 120 (ft^3)/min, how fast is the height of the sandpile changing when the pile is 10 feet high? [v =1/3(r^2)h]

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere

answer: plz give a pic and answer choices so i can answer!

step-by-step explanation: