smithbrandonr3916 smithbrandonr3916
  • 15-10-2017
  • Mathematics
contestada

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 manuel001
  • 15-10-2017
9^9 I think, 9*9*9*9*9*9*9*9*9
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