The vertical motion of a seat on a ferris wheel can be described by the equation y = 25 cos ( π t 3 ) + 26 . what is the diameter of the wheel in feet?
The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?