Answer
$31$
Work Step by Step
According to the picture: $n(\overline{A})=4+15+3+5+2+10+2+15-n(A)=46-(15+3+5+2)=31.$
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 13 - Counting and Probability - 13.1 Counting - 13.1 Asses Your Understanding - Page 847: 20
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