Trigonometry 7th Edition

Published by Cengage Learning
ISBN 10: 1111826854
ISBN 13: 978-1-11182-685-7

Chapter 2 - Test - Page 111: 12

Answer

$2.8^o$

Work Step by Step

RECALL: $1^o=60'$ Use the conversion rate above to obtain: $\require{cancel} 2^o48'$ $\\=2^o + 48' \\=2^o + 48' \left(\dfrac{1^o}{60'}\right) \\=2^o + \cancel{48'}\color{blue}4 \left(\dfrac{1^o}{\cancel{60'}\color{blue}5}\right) \\=2^o + \dfrac{4}{5}(1^o) \\=2^o + 0.8^o \\=2.8^o$
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