I have encountered a problem that says to solve "9!". What is the exclamation point mean and how do you properly use this function in word problems/real life situations?

Many thanks

I have encountered a problem that says to solve "9!". What is the exclamation point mean and how do you properly use this function in word problems/real life situations?

Many thanks

Many thanks

- Martingale
**Posts:**333**Joined:**Mon Mar 30, 2009 1:30 pm**Location:**USA-
**Contact:**

FuRy wrote:I have encountered a problem that says to solve "9!". What is the exclamation point mean and how do you properly use this function in word problems/real life situations?

Many thanks

!= factorial

9!=nine factorial

How many ways can you arrange 9 unique books in a row on a shelf...9! ways