According to the Rational Root Theorem, what are all the potential rational roots of f(x) = 9X4 – 2x2 – 3x + 4? 1
2
1
O ,
4 2 4
3. +1, +3, +2, +4
0 +2, ++1, +3, 4, +3, +
9
*9
4
1 2 1 4 2
Ogg. 3.9. 3, 1, 3, 2, 4
1 1 3 3 9 9
O 4.2.2.1, 2, 7, 3, 2,9

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