Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Appendix A - Review - A.1 Algebra Essentials - A.1 Assess Your Understanding: 81

Answer

$25^o$C

Work Step by Step

Substitute the given value of the $F$ into the expression: $C=\dfrac {5}{9}\left( F-32\right) =\dfrac {5}{9}\left( 77-32\right) =\dfrac {5\times 45}{9}=25^o$
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