anonymous
  • anonymous
Finding X with trig. Help plz for fan and medsl!
Mathematics
katieb
  • katieb
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anonymous
  • anonymous
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klimenkov
  • klimenkov
\(x\cdot \cos 24^\circ=11\)
phi
  • phi
See this http://www.khanacademy.org/math/trigonometry/basic-trigonometry/basic_trig_ratios/v/basic-trigonometry for the main idea. you need a calculator to solve this problem you know the ADJACENT side to angle 24ยบ and you want to find the HYPOTENUSE in SOH CAH TOA CAH is what you use Cosine = Adjacent/Hypotenuse that means cos(24)= 11/x you need to do a little algebra to "solve for x" multiply both sides by x (you want x up top) x cos(24) = 11 now divide both sides by cos(24) (you want x by itself) x= 11/cos(24) now use a calculator

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klimenkov
  • klimenkov
Please, accept my condolences @phi . We have one more ungrateful user.

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