Emma puts down $10000 in a simple interest account at a bank. She will earn $1800 in 4 years. What is the annual interest rate for the account.

What is the average rate of change for this function for the interval from x=2 to x=4 ?

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

1: 4 if the wew 35 surfboards at the beach how many were short boards?