Answer
a) 1000
b) 16000
c) 125
Work Step by Step
To solve we substitute t for the value given
a) t=0 since it's today $1200*2^0=1000$
b) t=4 population in 4 week $1200*2^4=16000$
c) t=-3 population 3 weeks ago $1200*2^{-3}=125$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 1 - Section 1.6 - Properties of Integral Exponents - Exercise Set - Page 80: 125
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