If the sphere shown above has a radius of 9 units, then what is the volume of the sphere?
1,215 cubic units
972 cubic units
324 cubic units
486 cubic units

Four airplanes carrying a total of 400 passengersarrive at the detroit airport. the airplanes carry, respectively,50, 80, 110, and 160 passengers.a) one of the 400 passengers is selected uniformly at random.let x denote the number of passengers that were on theairplane carrying the randomly selected passenger. find var(x)for x as given in the problemb) one of the 4 airplane drivers is also selected uniformly atrandom. let y denote the number of passengers on the chosen driver’s airplane. find var(y) for y as given in the problem

How do you do the foil method with polynomials?

What is the perimeter of an equilateral triangle if each side is (x+3)?