SOLUTION: how many 4-digit sequences can be formed using the digits 0,1,2,3,4,5,6?

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Question 565624: how many 4-digit sequences can be formed using the digits 0,1,2,3,4,5,6?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
how many 4-digit sequences can be formed using the digits 0,1,2,3,4,5,6?
Ans: 7P4 = 7!/(3!) = 7*6*5*4 = 840 sequences
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Cheers,
Stan H.
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