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OpenStudy (anonymous):
Last problem. Solve for x.
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OpenStudy (anonymous):
|dw:1426021978436:dw|
OpenStudy (amorfide):
If you label your sides opposite, hypotenuse, and adjacent opposite is opposite the angle you want so |dw:1426022057672:dw|
OpenStudy (amorfide):
o for opposite hypotenuse is opposite the right angle
OpenStudy (amorfide):
|dw:1426022083633:dw|
OpenStudy (amorfide):
the one left over is Adjacent
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OpenStudy (anonymous):
use cosine then right?
OpenStudy (anonymous):
cos(x)=9/13
OpenStudy (amorfide):
yes
OpenStudy (amorfide):
inverse cosine of 9/13 gives you your answer x
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