Homework Help: college math

Posted by Rose on Tuesday, December 11, 2007 at 8:52pm.

How many different four-digit numbers can be formed from the digits 0 through 9 if the first digit must be even and cannot be zero?

college math - Reiny, Tuesday, December 11, 2007 at 10:42pm
there are 4 choices for your first digit, but no limitations for the remaining 3 digits.
so
4*10*10*10=4000 different numbers

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