Which function models the sum? C D E
The function f(t) = -16+ 250 represents the distance
of a dropped object from the ground at any time, t. The
equation g(t) = 15t represents the height of the object if
it is tossed upward at a rate of 15 feet per second. The
sum of the functions can be used to model the distance
the dropped object is from the ground if it is tossed
upward at a rate of 15 feet per second before it begins
its descent.
Oh(t) = -16% + 265t
Oh(t) = -16% + 235t
Oh(t) = -16- 15t + 250
Oh(t) = -16P + 15t + 250

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