The answers are
5(2x + 1)(3x - 2)
and
-5(-6x^2 + x +2) /
Hope this helps, trust me it's correct.
See image for question.Please show workings and diagrams.
1 answer:
Answer:
- a) 7 km
- b) 298°
Step-by-step explanation:
<em>See attached diagram (not to scale). </em>
<em>All given details reflected.</em>
a) <u>Find the measure of XZ using the law of cosines:</u>
- y = √(5² + 3² - 2*5*3*cos 135°) = 7 km (rounded)
b) <u>Now using the law of sines find the measure of angle X:</u>
- 7 / sin 135° = 5 / sin X
- sin X = 5 sin 135° / 7
- m∠X = arcsin (5 sin 135° / 7 ) = 28° (rounded)
<u>The bearing of Z from X is:</u>
- 270° + 28° = 298°
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