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disa [49]
3 years ago
8

What is the length of BC?please help!!!

Mathematics
1 answer:
Ivenika [448]3 years ago
4 0

Answer:

2.1

Step-by-step explanation:

using cosine theorem or substraction of two vector

b = AC = 5

c = AB = 6

a² = b² + c² - 2bc cos A

a² = 5² + 6² - 2*5*6 cos 20°

a² = 4.62

a = √4.62

a = 2.149

a ≈ 2.1

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Solve for x. x−53 = 4
natima [27]

Answer:

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5 0
3 years ago
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Answer:

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Step-by-step explanation:

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7 0
2 years ago
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Answer:

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3 0
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Answer:

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