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11-01-2022
Mathematics

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Can someone help me with this?

Can someone help me with this class=

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felipesierra213 felipesierra213

11-01-2022

Answer:

D. 63 degrees

Step-by-step explanation:

For the first answer

Cos B = 0.45

tan60 = √3

= 60° = arctan √3

Cos B = 0.45

B = 63°

Thus B = arc cos 0.45 = 63°

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