Jane and Nina live 480 miles apart. Wanting to surprise each other, they happened to start driving straight toward each other at the same time and met 3 hours later. If Nina's speed
was 10 mph faster than Jane's speed, what was Jane's speed?

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

17 in long 1.3 ft wide and 8in high what is the volume

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c