F(x)=x^3+9x^2+23x + 15
1 answer:
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Answer:
Step-by-step explanation:
The longest side is opposite the largest angle, and the shortest is opposite the smallest one.
The largest angle lies opposite the longest side, and the smallest is opposite the smallest side.
Q1.
Calculate m∠Y.
We know: Measures of angles of triangle add up to 180°.
m∠Y + m∠W + m∠X = 180°
Substitute given angles:
m∠Y + 51° + 90° = 180°
m∠Y + 141° = 180° <em>substitute 141° from both sides</em>
m∠Y = 39°
39° < 51° < 90° → XW < XY < YW
Q2.
RQ < PR < PQ → ∠P < ∠Q < ∠R