SOLUTION: Mr. Marshall has nine different history books. how many ways can she arrange eight of them on a shelf.

Question 1115598: Mr. Marshall has nine different history books. how many ways can she arrange eight of them on a shelf.
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
9 ways to choose the first*8 ways to choose the second*7 ways to choose the third*6 ways to choose the fourth.
9*8*7*6*5*4*3*2, which is the same answer as 9!, since once the 8 are chosen, the ninth is fixed: 362,880
RELATED QUESTIONS
How many ways can you arrange four out of eight books on a... (answered by stanbon)

A man possesses 24 books, all different. In how many ways can he arrange 12 of them on a... (answered by Boreal,ikleyn,greenestamps)

How many ways can you arrange eight books on a... (answered by rapaljer)

2. In how many ways can you arrange six out of eight books on a shelf? (1... (answered by stanbon)

how many different ways can someone arrange 8 books on a... (answered by checkley71)

In how many different ways can you arrange nine CD's one after another on a... (answered by Fombitz)

Mr. Jones has 10 books that he is going to put on his bookshelf. Of these, 4 are... (answered by jrfrunner)

In how many ways can 4 different Math books, 5 different History books, and 2 different... (answered by Boreal)

In how many ways can 4 different Math books, 5 different History books, and 2 different... (answered by greenestamps)