Math

posted by .

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



Oh goodness, I'm not sure what number to start with :(

  • 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 :)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. data management

    from the digits 0,1,2,3,4,5,6,7,8,9 find the number of a) 4-digit numbers with repetition of digits b) 4-digit numbers without repetition of digits c) the number of odd 4-digit numbers with no repetition of digits d) the number of …
  2. math

    your social security number is a 9 digit number. suppose that the last 4 digits are chosen randomly from the number 0-9. a. how many sequences are possible for the last 4 digits?
  3. Math

    Social Security Numbers A social security number consists of nine digits. How many different social security numbers are possible if repetition of digits is permitted?
  4. Math-New Questions

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

    1.) A security code has seven characters. Each code begins with two digits, then two letters, and finally three digits. the number of distinct security codes possible if repetition is allowed?
  6. math

    A typical Social Security number is 555-47-5593. How many Social Security numbers are possible if the first two digits cannot be 0?
  7. math

    a social security number contains nine digits such as 074-66-7795. how many different social security numbers can be formed?
  8. College Mathematics

    Counting Principles and Permutation. A social security number consists of 9 digits. How many different social security numbers are possible if repetition of digits is permitted
  9. College Mathematics

    Counting principles and permutations. A social security number consists of 9 digits. How many different social security numbers are possible if repetition of digits is permitted. digits 0-9
  10. Math

    A Social Security number has seven digits. How many Social Security numbers are possible?

More Similar Questions