A cyclist rode 4.5 miles in 0.4 hours. How fast was the cyclist going in miles per hour

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

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