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Mathematics, 21.06.2019 17:20
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 driverβs airplane. find var(y) for y as given in the problem
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Mathematics, 21.06.2019 21:20
What is the area of a triangle with vertices at (-3 3) (-3,2) and (1,2)?
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Mathematics, 22.06.2019 00:00
One positive integer is 2 less than another. the product of the two integers is 24. what are the integers?
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Mathematics, 22.06.2019 01:00
Atriangle has side lengths of x, x+11, and 3x+5. what is the perimeter?
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Find tan A and tan B.
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