Fill in the blanks below to correctly solve the quadratic equation by completing the square. If there's only one solution, write "none" in the second box. LaTeX: r^2-4r=12

What number should be added to both sides to complete the square?

Which matrix multiplication is possible?

The verbal translation for the difference of m and 7 increased by 15

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