Answer
See below
Work Step by Step
a) This is simply $P(30,4) = 657720$
b) There is no ordering involved in this problem. Thus, we find $C(30,4)=27405$
College Algebra 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305115546
ISBN 13:
978-1-30511-554-5
Chapter 9, Counting and Probability - Chapter 9 Test - Page 686: 4
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