Use the property to estimate the best possible bounds of the integral. 6e3 − (x2 + y2)2dA, Q Q is the quarter-circle with center the origin and radius 1 2 in the first quadrant. (Round your answers to four decimal places.) < 6e3 − (x2 + y2)2dA Q <

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

Predict which statements are true about the intervals of the continuous function. check all that apply

Line u passes through points (-52, -18) and (-29, 53). line v passes through points (90, 33) and (19, 56). are line u and line v parallel or perpendicular?