Consider all 5-letter "words" made from the letters a through h. (Recall, words are just strings of letters, not necessarily actual English words.) (a) How many of these words are there in total? (b) How many of these words contain no repeated letters? (c) How many of these words start with the sub-word "aha"? (d) How many of these words either start with "aha" or end with "bah" or both?

Consider all 5-letter "words" made from the letters a through h. (Recall, words are just strings of letters, not necessarily actual English words.) (a) How many of these words are there in total? (b) How many of these words contain no repeated letters? (c) How many of these words start with the sub-word "aha"? (d) How many of these words either start with "aha" or end with "bah" or both?

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter10: Sequences, Series, And Probability

Section: Chapter Questions

Problem 64RE

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