The volume of a cylinder is 81n in. 3 and the height of the cylinder is 1 in. What is the radius of the cylinder?

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x