Mathematics, 29.06.2019 15:30 k3wabii
What is the solution to the system? {x+3y-z=6{4x-2y+2z= -10{6x+z= -12a. (2, 1, -3)b. (-3, 5, 6)c. (0,-2,-12)
Answers: 1
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 driver’s airplane. find var(y) for y as given in the problem
Answers: 3
Mathematics, 21.06.2019 17:20
7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?
Answers: 1
Mathematics, 21.06.2019 18:40
The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?
Answers: 2
What is the solution to the system? {x+3y-z=6{4x-2y+2z= -10{6x+z= -12a. (2, 1, -3)b. (-3, 5, 6)c. (0...
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