The given function models the annual sales turnover of a company, f(x), in millions of dollars, x years after the company was listed on the stock exchange. which statement is true?

What are “like terms”? why can we only add like terms?

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

Is a positive integer raised to a negative power always positive