Answer
$\frac{x^4}{2}$
Work Step by Step
at for a right triangle $A=\frac{\text{length}\cdot\text{width}}{2}$, where $A$ is the area.
Hence here the width is $x$, the length is $x^3$, therefore $A(x)=\frac{x^3\cdot x}{2}=\frac{x^4}{2}$
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 2 - Functions and Their Graphs - 2.6 Mathematical Models: Building Functions - 2.6 Assess Your Understanding - Page 109: 5
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