Abdallah sees two right triangles that have the two acute angles from the first triangle are congruent to the two acute angles from the second triangle and concludes that they are congruent. Is he correct? If not, show a counterexample. Draw a diagram to show your work.

Twenty-five percent of the customers entering a grocery store between 5 p.m. and 7 p.m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

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