sombra que proyecta un poste de 4,5m sobre piso horizontal mide 5,3m ¿ cual es el angulo elevacion del sol en ese momento?

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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

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers