Law of Cosine/Sine problem.
1 answer:
Either or can be used with any triangle...I personally find the law of sines is often more compact as in this case we can just say;
(sin115)/18=(sin40)/c (with no need for b or B as would be needed with the law of cosines...)
c=18(sin40)/(sin115)
c≈12.77
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The answer to your questipn is 832.
Answer:
40 1/2 or 40.5
Step-by-step explanation:
i used a calculator
For the first question could you tell me how many students hade a Mark less that 20%
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