Answer
$10$
Work Step by Step
Using order of operations, the given expression, $
9-3^2\div9(-1)
$, evaluates to
\begin{array}{l}
9-9\div9(-1)
\\\\=
9-1(-1)
\\\\=
9+1
\\\\=
10
.\end{array}
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 1 - Introduction to Algebraic Expressions - 1.8 Exponential Notation and Order of Operations - 1.8 Exercise Set - Page 66: 48
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