According to the Rational Root Theorem, what are all the potential rational roots of f(x) = 5x^3 - 7x + 11? A) (+-) 1/11, (+-) 5/11, (+-) 1, (+-)5
B) (+-)1/5, (+-)1, (+-)11/5, (+-)11
C) (+-)1/11, (+-)1/5, (+-)5/11, (+-)1, (+-)11/5, (+-)5, (+-)11
D) 0, (+-)1/11, (+-)1/5, (+-)5/11, (+-)1, (+-)11/5, (+-)5 (+-)11

Write the expression in simplified radical form. show all steps and work including any foil method work. (hint: use the conjugate. no decimal answers.) (9-2√3)/(12+√3)

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

If 25% of y is 30, what is 60% of y?