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MaryJSmith

  • 2 years ago

Andy is parasailing and is at point A of the towline AB. The point B of the towline is connected to a boat, as shown. What is the length, in feet, of the towline AB?

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  1. MaryJSmith
    • 2 years ago
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  2. bluepig148
    • 2 years ago
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    soh cah toa, basic trig. cos 43 = 500/AB AB = 500/cos 43 approx = 683.6637 feet

  3. MaryJSmith
    • 2 years ago
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    |dw:1333067352819:dw| B) 500 cosec 43 degrees C) 500 sec 43 degrees

  4. bluepig148
    • 2 years ago
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    You can do this yourself...

  5. MaryJSmith
    • 2 years ago
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    so A ?

  6. bluepig148
    • 2 years ago
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    Do you know what cot, sec, and csc mean?

  7. MaryJSmith
    • 2 years ago
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    no

  8. bluepig148
    • 2 years ago
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    What about cotangent, secant, and cosecant.

  9. MaryJSmith
    • 2 years ago
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    i've heard of them but i don't really know what the meaning..

  10. bluepig148
    • 2 years ago
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    But you know what sine, cosine, and tangent (sin, cos, and tan) mean, right?

  11. MaryJSmith
    • 2 years ago
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    no not really .

  12. bluepig148
    • 2 years ago
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    What math are you taking?

  13. MaryJSmith
    • 2 years ago
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    it's somewhere in my text book but i don't understand it .

  14. MaryJSmith
    • 2 years ago
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    i'm taking 10th grade geometry .

  15. bluepig148
    • 2 years ago
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    So you don't know how to use trig functions (sin, cos, tan, etc...)? I can link you to some good videos if you want.

  16. MaryJSmith
    • 2 years ago
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    Please do :) I need all the help I can get !!

  17. MaryJSmith
    • 2 years ago
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    My finals are coming up at the end of next month !

  18. bluepig148
    • 2 years ago
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    http://www.khanacademy.org/math/trigonometry/v/basic-trigonometry Start there and click "next video" for as long as you need to. This is the very beginning of the trigonometry playlist, and this guy explains things really well. You can go to the main site to see a bunch of other vids on a ton of other topics (there's geometry in there too). I think after watching the first one you'll remember what your teacher said in class, so: cosecant x = csc x = 1/sin x secant x = sec x = 1/cos x cotangent x = cot x = 1/tan x I dunno when he introduces those ideas. Very simple though when you know what sine, cosine, and tangent are though. Good luck on your final!

  19. MaryJSmith
    • 2 years ago
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    thank you so much :)

  20. bluepig148
    • 2 years ago
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    No problem.

  21. Directrix
    • 2 years ago
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    cos 43 = 500/AB AB = 500/ [cos 43] -----> which is equivalent to C) 500 sec 43 degrees --> Answer AB = 683.664

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