Answer
$$h = 5$$
Work Step by Step
We want to use the values provided for $A$ and $b$ to set up the equation:
$$30 = \frac{1}{2}(12)h$$
Now we can simplify the equation:
$$6h = 30$$
Divide by $6$ on both sides to isolate $h$:
$$h = 5$$
Introductory Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-805-X
ISBN 13:
978-0-13417-805-9
Chapter 2 - Section 2.5 - An Introduction to Problem Solving - Exercise Set - Page 168: 66
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