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Answer:
The answers are
y=9
x≈16
Explanation:
90+60+z=180
z+150=180
z=180-150
z=30°
sin30=y/18
y=18sin30
hyp²=opp²+adj²
adj²=hyp²-opp²
x²=18²-9²
x²=324-81
x²=243
take the square root of both sides
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