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Lukecrayonz Group Title

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 to the nearest hundredth.

  • 2 years ago
  • 2 years ago

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  1. Lukecrayonz Group Title
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    554.56 ft 531.86 ft 494.06 ft 509.36ft

    • 2 years ago
  2. Lukecrayonz Group Title
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    @kesumonu glucy7 says you're a math wizard! Can you help me?

    • 2 years ago
  3. kesumonu Group Title
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    yeah i can

    • 2 years ago
  4. phi Group Title
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    can you draw a picture of what is going on?

    • 2 years ago
  5. kesumonu Group Title
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    |dw:1355073442144:dw|

    • 2 years ago
  6. Lukecrayonz Group Title
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    Well I drew a picture @phi but I think I'm doing something wrong so I don't want to post one

    • 2 years ago
  7. kesumonu Group Title
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    ignore the distorted line

    • 2 years ago
  8. phi Group Title
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    If you can't draw the picture, you probably won't solve the problem what did you get?

    • 2 years ago
  9. Lukecrayonz Group Title
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    I got 175 which isn't an option

    • 2 years ago
  10. kesumonu Group Title
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    the amnswer |dw:1355073674356:dw|

    • 2 years ago
  11. kesumonu Group Title
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    initially boat is at a and finally it stops at b the ans ss 22 answer would be 200(cot(49.29)-cot(16.23))

    • 2 years ago
  12. Lukecrayonz Group Title
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    But doing that would give me 472 which isn't an answer choice :o @kesumonu

    • 2 years ago
  13. kesumonu Group Title
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    509.4 approx

    • 2 years ago
  14. kesumonu Group Title
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    which is one of the answer

    • 2 years ago
  15. Lukecrayonz Group Title
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    THANK YOU

    • 2 years ago
  16. Lukecrayonz Group Title
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    If the instructions for a problem ask you to use the smallest possible domain to completely graph two periods of y = 5 + 3 cos 2(x - ), what should be used for Xmin and Xmax? Explain your answer. @kesumonu I also need help with this one and after this @glucy7 and I won't bother you...

    • 2 years ago
  17. kesumonu Group Title
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    u might have made some mistake in conversion of degree

    • 2 years ago
  18. kesumonu Group Title
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    what is written in the bracket, clerify lil bit

    • 2 years ago
  19. Lukecrayonz Group Title
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    it was supposed to be (x-π/3) sorry!

    • 2 years ago
  20. kesumonu Group Title
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    the shape of this function y is similar to cos(2x) Xmin can be pi/3 Xmax would be pi+(pi/3) Xmax depends on Xmin

    • 2 years ago
  21. kesumonu Group Title
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    is that ok or u need more clarification

    • 2 years ago
  22. Lukecrayonz Group Title
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    that's good thank you!

    • 2 years ago
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