# Math

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A social security number consists of nine digits. How many different social security numbers are possible if repetition of digits is permitted?

• Math -

in each position you could place 9 different digits.
So the total number of ways = 9^9 = .....

• Math -

9^9 = 387,420,489 different social security numbers are possible??

• Math -

correct

• Math -

okay great! thanks :)

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