How many possible social security numbers are there if


1. A social security number has 9 digits. If numbers can be repeated and all numbers can be used, there would be 10^9 possible social security numbers. Find each of the following.

a. How many possible social security numbers are there if numbers can be repeated but 0 cannot be used for the first digit?

Solution Preview :

Prepared by a verified Expert
Algebra: How many possible social security numbers are there if
Reference No:- TGS01374290

Now Priced at $10 (50% Discount)

Recommended (98%)

Rated (4.3/5)