Say that a and b are the lengths of the legs of a right triangle and c is the length of the hypotenuse. find b if a = 21 and c = 29.
a) b =40
b) b = 20
c) b= 10
d) b = 400

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