rrobbins476 rrobbins476
  • 01-06-2020
  • Mathematics
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What is the value of b? Round you answer to the nearest tenth

What is the value of b Round you answer to the nearest tenth class=

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altavistard
altavistard altavistard
  • 05-06-2020

Answer:

23.01 = b

Step-by-step explanation:

Solve this using the Law of Cosines first:  Find side length b.

b^2 = 22^2 + 28^2 - 2(22)(28)*cos 34 deg, or:

b^2 = 484   +  784   - 2(616)(0.593), or

       =       1260    -730.576    =    529.424

Taking the square root of both sides, we get:

b = +√529.424 = 23.01 = b

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