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KIM [24]
3 years ago
10

Help with 16 and 17 please

Mathematics
1 answer:
Keith_Richards [23]3 years ago
8 0

Answer:

16) b and 17) C

Step-by-step explanation:

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The length 2.3 and 7.8 units

We have given that ΔABC, c = 5. 4, a = 3. 3, and measure of angle A = 20 degrees.

<h3>What is the formula for low of cosine?</h3>

The Law of Cosines, which tells us

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giving us a quadratic equation for b we can solve.  But let's do it with the Law of Sines as asked.

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C_{0}=180-C_{a}  =145.96^0

Both of these make a valid triangle with A=20°.   They give respective B's:

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Therefore we get the length 2.3 and 7.8 units

To learn more about the low of sine and cosine visit:

brainly.com/question/4372174

Answer: 2.3 units and 7.8 units

Let's check it with the Law of Cosines:

There's a shortcut for the quadratic formula when the middle term is 'even.'

Looks good.

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