What is the solution set for X+31 = 57 O S--8 and s-8
O s--2 and s-2
S=-8 and s-2
O S-2 and s-8

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

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5

Which best explains why this triangle is or is not a right triangle ?