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snow_tiger [21]
2 years ago
10

PLS HELP a) -3*2-9 b) 2+ -4*-3

Mathematics
1 answer:
alekssr [168]2 years ago
7 0

Answer:

hope this will help you...

Step-by-step explanation:

a) - 3 \times 2 - 9 \\ solution \\  - 3 \times 2 - 9 \\  - 6 - 9 \\  - 15 \\  \\ b)2 +  - 4 \times  - 3 \\ solution \\ 2 +  - 4 \times  - 3 \\ 2 + 12  \\ 14

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Triangle ABC is a non-right triangle with Angle C = 117, a = 12, and b = 18. Find Angle B to the nearest tenth.
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Using the law of cosines and sines, the measure of angle B is: 38.4°.

<h3>What is the Law of Cosines and Sines?</h3>

Law of cosines is: c = √[a² + b² ﹣ 2ab(cos C)]

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Learn more about the law of cosines on:

brainly.com/question/23720007

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Step-by-step explanation:

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