SOLUTION: an internet site requires a 8 character passwords, made up of 4 digits and 4 letters. it's required that the first number of the password be the number 9, without repetition of num
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Question 877952: an internet site requires a 8 character passwords, made up of 4 digits and 4 letters. it's required that the first number of the password be the number 9, without repetition of number or letters, how many different password can be made?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Since the first number is 9, only 9 digits are left to use.
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