Answer
.812 grams
Work Step by Step
half life of 72 years
100 grams, 500 years
$y=100*(.5)^{500/72}$
$y=100*(.5)^{6.9444}$
$y=100*.008119$
$y=.8119$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 12 - Section 12.4 - Exponential Growth and Decay Functions - Exercise Set - Page 868: 26
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