Final Review Day 2

Question 1: Simplify (xy³/xy⁴)^-3

Question 2: A 6-sided die is rolled and a spinner with equal sections labeled A, B, C, D, and E is spun. What is the probability you roll an even number and spin an A or D?

Question 3: There are 10 shirts on a rack at a yard sale. There are 2 blue shirts with black emblems, 4 red shirts with black emblems, 3 blue shirts with white emblems and 1 red shirt with a white emblem. If you randomly pick a shirt, what is the probability it is a red shirt or has a white emblem?

Question 4: True or False: When calculating probability questions, the permutation formula is used when order matters and the combination formula is used when order doesn’t matter.

Question 5: In an Olympic competition, 9 people are racing. How many ways can the top three finishers place?