Short answer
1. a. use the quadrilateral below. find the measures of angles 1,2,3, and 4.
40°4
2105
140°
measure of angle 1
measure of angle 2
measure of angle 3
measure of angle 4
i don’t understand

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

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