College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter 10 - Review Exercises - Page 708: 17



Work Step by Step

We have 2 choices for the last digit 2 or 3. We have 8 choices for the first digit (10-2 we are told not to use) The rest all have 10 choices. By the fundamental principle of counting, $N(P)=10^5*2*8=1600000$
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