Answer
(a) 32
(b) 1000000
Work Step by Step
(a) $\frac{18^5}{9^5}=(\frac{18}{5})^5=2^5=32$
(b) $20^6*(0.5)^6=(20*0.5)^6=10^6=1000000$
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 P, Prerequisites - Section P.3 - Integer Exponents and Scientific Notation - P.3 Exercises - Page 25: 57
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