Solve 4/x-4=x/x-4-4/3 for x and determined if the solution is extraneous or not.
a. x=4, extraneous
b. x=4,non-extraneous
c. x= -4, extraneous
d. x= -4, non extraneous

Given the box plot, will the mean or the median provide a better description of the center? box plot with min at 10.5, q1 at 11.5, median at 12.5, q3 at 13.5, max at 15

If f(x)= 3x+6 which of the following is the inverse of f(x)

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