11mystical
11mystical 11mystical
  • 11-01-2022
  • Mathematics
contestada

Can someone help me with this?

Can someone help me with this class=

Respuesta :

felipesierra213
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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