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Mathematics 8 Online
OpenStudy (kayluh123):

Melissa is choosing a 2-letter password from the letters A, B, C, D, E, and F. The password cannot have the same letter repeated in it. How many such passwords are possible?

OpenStudy (anonymous):

AB AC AD AE AF BA BC BD BE BF CA CB CD CE CF DA DB DC DE DF EA EB EC ED EF FA FB FC FD FE

OpenStudy (anonymous):

6 choices for the first letter x 5 choices for the second letter 6 x 5

OpenStudy (kayluh123):

thanks!

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