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 425: 35

Answer

$286$

Work Step by Step

There are 10 decimal digits. There are 26 letters in the alphabet. So if the variable name is a letter, there are 26 possibilities.. If it is a letter followed by a decimal digit, there are $26*10=260$ possibilities Overall, there are $26+260=286$ different variables.
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