Asked by opo
h(t)=48-40cos(πt/45)
When does the rider first reach a height of 17 feet? Give your answer to the nearest second.
When does the rider first reach a height of 17 feet? Give your answer to the nearest second.
Answers
Answered by
oobleck
that would be when
48-40cos(πt/45) = 17
40cos(πt/45) = 31
cos(πt/45) = 31/40
now, just find arccos(31/40) and you're almost done.
48-40cos(πt/45) = 17
40cos(πt/45) = 31
cos(πt/45) = 31/40
now, just find arccos(31/40) and you're almost done.
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