The answer is D I made a video incase you can’t see the picture well.
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X= 9 over 4 is the correct answer
Use the sin identity to find that side. Sin(30) = a/12...12 sin(30) = a, and a = 6
P=i/rt
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Hope it helps
-11+square root of 19/ 20 , -11- square root of 19/ 20