Simplify this expression: 13 + (–12) – (–5) = ? A. 30 B. –30 C. –6 D. 6
2 answers:
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We can use the tangent rule for this problem because the opposite x is unknown and adjacent side 10 is knwon. Since,
Since tan 35°=0.474
Multiplying each sides by 10.
4.74=x
x=4.7 (Rounded to nearest tenth)