Gabbywinetz
Gabbywinetz Gabbywinetz
  • 09-12-2020
  • Mathematics
contestada

Please help!!!!!!!!!

Please help class=

Respuesta :

jimrgrant1 jimrgrant1
  • 09-12-2020

Answer:

D

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos CBA = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{BC}{AB}[/tex] = [tex]\frac{3}{9}[/tex] , thus

∠ CBA = [tex]cos^{-1}[/tex] ([tex]\frac{3}{9}[/tex] ) ≈ 70.53° ( to 2 dec. places )

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