Question
A security system uses a four-letter password, but no letter can be used more than once. How many possible passwords are there if 14 of
A security system uses a four-letter password, but no letter can be used more than once. How many possible passwords are there if 14 of the letters of the alphabet can be used by the system?(Use these numbers for this question only!)
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Introductory Algebra
Authors: Julie Miller, ONeill, Nancy Hyde
2nd Edition
0077473418, 9780077473419
