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Quick ASAP! What is x? Round to the nearest tenth.

Quick ASAP! What is x? Round to the nearest tenth.
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5 votes
Quick ASAP! What is x? Round to the nearest tenth.

Quick ASAP! What is x? Round to the nearest tenth.-example-1
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User Jaumebonet
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8.3k points

1 Answer

3 votes

Check the picture below.


\cos(x )=\cfrac{\stackrel{adjacent}{5}}{\underset{hypotenuse}{13}} \implies \cos^(-1)(~~\cos( x )~~) =\cos^(-1)\left( \cfrac{5}{13} \right) \\\\\\ x =\cos^(-1)\left( \cfrac{5}{13} \right)\implies x \approx 67.4^o

Make sure your calculator is in Degree mode.

Quick ASAP! What is x? Round to the nearest tenth.-example-1
answered
User Swanny
by
8.4k points
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