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ziro4ka [17]
2 years ago
8

Please help I dont understand

Mathematics
1 answer:
Arisa [49]2 years ago
5 0

Answer:

38 degrees

Step-by-step explanation:

By the Law of Cosines,

5² = 3² + 7² - 2(3)(7) cos A

5² - 3² - 7² = -2(3)(7) cos A

-33 = -42 cos A

cos A = 33/42

A = arccos(33/42), which is about 38 degrees.

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3 0
3 years ago
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Given: C(N) = 15,000 + 8000N <span>

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</span>

<span>Therefore:
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7 0
3 years ago
Read 2 more answers
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LiRa [457]
Thats like geometry 
and are you good in this suject?
5 0
2 years ago
Factor completely. wait for photo
rjkz [21]
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