Question 14 of 20 Which function transforms the graph of y=x^2 so that it is first shifted down
2 units and is then reflected across the x-axis?
A. y=-x^2 + 2
B. y=(-x)^2+2
C. y= -(x+2)^2
D. y=-x^2-2

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