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Mathematics 14 Online
anonymousstudent:

Geoff needs to create a password for his E-mail account. The password must have three letters. How many different passwords can he make? Assume he may not use each letter more than once.

TheSmartOne:

Hey there! Welcome to QuestionCove! Do you know how many letters are in the alphabet? Have you learned permutations and combinations?

Macho14:

So I am confused, he can only use letters?

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