The temperature at 6 PM was 30° F. what would the temperature have been at 9 Am ? explain how you can use the expression.

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 is the simplified form of square root of 400 to the 100th power ?

The amount of data left on the cell phone six gb for 81.5 gb of data is used how much data is available at the beginning of the cycle