Third derivative of xsinx? the answer key she gave us says it's -xcosx-3sinx. how?

In exponential growth functions, the base of the exponent must be greater than 1,how would the function change if the base of the exponent were 1? how would the fiction change if the base of the exponent were between 0and 1

Franco wants to double the volume of the cone. what should he do?

Asphere has a diameter of 10 in. what is the volume of the sphere?