Which expression is equal to 3x-(2x+4)+5 a. x+9 b. x+1 c. 5x+9 d. 5x+1
1 answer:
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Answer:
y ≈ 61
Step-by-step explanation:
Using the Sine rule in the triangle
=
( cross- multiply )
y × sin18° = 21 × sin117° ( divide both sides by sin18° )
y = ≈ 61 ( to the nearest whole number )