Answer
$-128.92°F$
Work Step by Step
The formula to convert from C to F is:
$F = \frac{9}{5}C + 32$
Lets replace C by -89.4:
$F = \frac{9}{5} \times(-89.4) + 32 = 160.92 + 32 = -128.92$
$-128.92°F$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 1 - Equations and Inequalities - 1.1 Linear Equations - 1.1 Exercises - Page 94: 68
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