anonymous
  • anonymous
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?
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
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anonymous
  • anonymous
soh cah toa, basic trig. cos 43 = 500/AB AB = 500/cos 43 approx = 683.6637 feet
anonymous
  • anonymous
|dw:1333067352819:dw| B) 500 cosec 43 degrees C) 500 sec 43 degrees

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anonymous
  • anonymous
You can do this yourself...
anonymous
  • anonymous
so A ?
anonymous
  • anonymous
Do you know what cot, sec, and csc mean?
anonymous
  • anonymous
no
anonymous
  • anonymous
What about cotangent, secant, and cosecant.
anonymous
  • anonymous
i've heard of them but i don't really know what the meaning..
anonymous
  • anonymous
But you know what sine, cosine, and tangent (sin, cos, and tan) mean, right?
anonymous
  • anonymous
no not really .
anonymous
  • anonymous
What math are you taking?
anonymous
  • anonymous
it's somewhere in my text book but i don't understand it .
anonymous
  • anonymous
i'm taking 10th grade geometry .
anonymous
  • anonymous
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.
anonymous
  • anonymous
Please do :) I need all the help I can get !!
anonymous
  • anonymous
My finals are coming up at the end of next month !
anonymous
  • anonymous
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!
anonymous
  • anonymous
thank you so much :)
anonymous
  • anonymous
No problem.
Directrix
  • Directrix
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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