social security number contains nine digits 0 0 0 0 0 0 0 0 0 how many different Social Security numbers can be formed using in a in a numerals from 0-9
Accepted Solution
A:
First spot: 9 choices (0-9) Second spot: 9 choices (0-9) Third spot: 9 choices (0-9) . . . Ninth spot: 9 choices (0-9)
There are 9 choices for each digit, meaning we need to compute 9^9 to figure out how many possible social security numbers there are.