bbellag17
bbellag17 bbellag17
  • 22-06-2020
  • Mathematics
contestada

what would the answer be??

what would the answer be class=

Respuesta :

valerieulbrich
valerieulbrich valerieulbrich
  • 28-06-2020

Answer:

38°

Step-by-step explanation:

a²=b²+c²-2bc cos A

5²=3²+7²-2(3)(7) cos A

-33 = -42 cos A

A = [tex]cos^{-1}[/tex](-33/-42)

A = 38°

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