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Mathematics, 21.06.2019 16:00
Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?
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The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left
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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
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Please help I can seem to figure these out
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