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11 votes
11 votes
Find 0. Round to the nearest degree

A. 26
B. 66
C. 64
D. 24

Find 0. Round to the nearest degree A. 26 B. 66 C. 64 D. 24-example-1
User Ablarg
by
3.3k points

2 Answers

8 votes
8 votes

Answer: Choice C) 64 degrees

Work Shown:


\cos(\theta) = \frac{\text{adjacent}}{\text{hypotenuse}}\\\\\cos(\theta) = (7)/(16)\\\\\cos(\theta) = 0.4375\\\\\theta = \cos^(-1)(0.4375)\\\\\theta \approx 64.0555^(\circ) \\\\\theta \approx 64^(\circ) \\\\

Note: some calculators will use the notation arccos in place of the
\cos^(-1)

User Pot
by
3.1k points
22 votes
22 votes

Answer:

C. 64°

Explanation:


{ \tt{ \cos( \theta) = (adjacent)/(hypotenuse) }} \\ \\ { \tt{ \cos( \theta) = (7)/(16) }} \\ \\ { \tt{ \theta = { \cos }^( - 1) ( (7)/(16) )}} \\ \\ { \tt{ \theta = 64 \degree}}

User Anvaka
by
2.9k points