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OpenStudy (anonymous):
Can you check and see if I got the right answer?
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OpenStudy (anonymous):
A person is watching a boat from the top of a lighthouse. The boat is approaching the lighthouse directly. When first noticed the angle of depression to the boat is 16°23'. When the boat stops, the angle of depression is 49°29' . The lighthouse is 200 feet tall. How far did the boat travel from when it was first noticed until it stopped? Round your answer to the hundredths place.
OpenStudy (anonymous):
yeah, sure :)
OpenStudy (anonymous):
I got 509.48.
OpenStudy (anonymous):
Thanks! :D
OpenStudy (anonymous):
yep... that looks right to me :D
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OpenStudy (anonymous):
Awesome! I have another question. I have to find the exact value of arccos(sin(pi/6)). How would I do that?
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