Finite Math and Applied Calculus (6th Edition)

Published by Brooks Cole
ISBN 10: 1133607705
ISBN 13: 978-1-13360-770-0

Chapter 6 - Section 6.3 - Decision Algorithms: The Addition and Multiplication Principles - Exercises - Page 423: 14

Answer

20

Work Step by Step

Step 1: Choose where to put the b in the sequence: 5 choices Step 2: Choose where to put the c in the sequence: 4 choices (Because we can not put it where the b is) The other letters are a's. This gives $5*4=20$ choices.
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