Which relationship describes angles 1 and 2?

select each correct answer.

complementary angles
supplementary angles
vertical angles
adjacent angles

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

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

The square root of 9x plus 7 plus the square rot of 2x equall to 7