Solve Counting Problems Using the Multiplication Rule
-There are 9 performers who are to present their acts at a variety show. How many different ways are there to schedule their appearances
A) 362,880
B) 9
C) 81
D) 72

Question

Quizplus · Accepted Answer

The number of ways to schedule the appearances of 9 performers is calculated using the factorial of 9 (9!), which equals 362,880. This is because the first performer can be chosen in 9 ways, the second in 8 ways, and so on, down to 1 way for the last performer, leading to 9*8*7*6*5*4*3*2*1 = 362,880 different ways.