Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 1, Equations and Inequalities - 1.1 Apply Properties of Real Numbers - 1.1 Exercises - Mixed Review - Page 9: 80


A=15 in$^{2}$

Work Step by Step

$a=7$ in $c=3$ in $h=3$ in $A=\frac{1}{2}(a+c)\times h=\frac{1}{2}(7+3)\times3=\frac{1}{2}(10)\times3=5\times3=15$
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