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 po

Algebra ->  Finance -> 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 po      Log On


   

Question 1176342: 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? And permutation, or combination?
Answer by CubeyThePenguin(3113) About Me  (Show Source):
You can put this solution on YOUR website!
26 letter of the alphabet + 10 numbers = 36 characters overall

order matters --> permutation

36 * 35 * 34 * 33 = 1,413,720