smithbrandonr3916 smithbrandonr3916

15-10-2017
Mathematics

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Every social security number consists of nine digits, 0 through 9. if repetition of digits is permitted, how many possible social security numbers are there?

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manuel001 manuel001

15-10-2017

9^9 I think, 9*9*9*9*9*9*9*9*9

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