Answer
$\frac{710}{x} +x^2$.
Work Step by Step
The result from part b. is
$w=\frac{355}{x^2}$.
Surface area $=2wx+x^2$.
Substitute the value of $w$.
$=2\left (\frac{355}{x^2} \right)x+x^2$.
Simplify.
$=\frac{710}{x} +x^2$.
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 11 - Rational Expressions and Functions - 11-1 Simplifying Rational Expressions - Apply What You've Learned - Page 669: d
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