SOLUTION: Carl is choosing a four-character password for his cell phone. The password can contain letters and digits only, and can't include repeating characters. How many passwords are poss

Algebra ->  Permutations -> SOLUTION: Carl is choosing a four-character password for his cell phone. The password can contain letters and digits only, and can't include repeating characters. How many passwords are poss      Log On


   

Question 1021307: Carl is choosing a four-character password for his cell phone. The password can contain letters and digits only, and can't include repeating characters. How many passwords are possible?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
There are 26 letters and 10 digits for a total of 36 characters.
N=36%2A35%2A34%2A33=1413720