For Items 9-11, determine the length of each segment with the given endpoints.
9. C(1, 4) and D(11, 28)
10. Y(-2, 6) and Z(5, -8)
11. P(-7,-7) and Q(9,5)

Hi i’m not sure how to do question 20 if u could explain how to do it that’d b great

The base of a pyramid is a square with 5 lines of 5cm the slant height of each lateral face of the pyramid is 6 cm what is the surface area of the pyramid

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? 0.62 0.78 0.84 0.96