I'm not sure how to do this manually but if you plug in 7/12 in a scientific calculator and then press sin -1 you'll get approximately 35.685
Answer: 1/3 and -1/3
Step-by-step explanation:
Mabye try making the triangle a right triangle and use SohCahToa (sin, cos, tan) to figure out each angle?
The answer is ( x - 3 ) ( x - 5)
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




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The correct answer is (( D )) .
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