Which one of the following order pairs represents the solution to the system of the equations below? -4x+9y=8
x-3y=-6

a) (-21,-5)
b) (-9,-1)
c) (3,3)
d) (9,5)

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол