zionna31 zionna31
  • 03-07-2018
  • Mathematics
contestada

find the cosine of angle Y

find the cosine of angle Y class=

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dwh2o13
dwh2o13 dwh2o13
  • 03-07-2018
The cosine of angle y would be equal to the length of the adjacent side over the length of the hypotenuse. 

cos(y) = [tex] \frac{64}{80} [/tex] = [tex] \frac{4}{5} [/tex]
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bayleecase2002
bayleecase2002 bayleecase2002
  • 03-07-2018
cosine = adjacent ÷ hypotenuse 

So the cosine of ∠y would equal 64/80 
64 being the adjacent side 
And 80 being the hypotenuse

cos(y) = 64/80 = 4/5

The answer would be 4/5 or 80°
Answer Link

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