Correct answer only !

find s5 for the sequence 3, 13, 23, 33, 43, 53, 63, 73.

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

The fraction 7/9 is equivalent to a percent that is greater than 100%. truefalse

What are the measures of angles a, b, and c? show your work and explain your answers. 25 points