Brock is a plumber. He charges a flat rate of $40 to visit a house to inspect it's plumbing. He charges an additional $20 for ev
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<h3>Answer: 116.2°</h3>
Work Shown:
The first equation is one of the three variations for the Law of Cosines.
Make sure your calculator is in degree mode.
Formula for point-slope: 
Plug in the values:
And there you have your answer in point-slope form
Plug in the values:
And there you have your answer in point-slope form
- Multiply x-1 on both sides
- Add 4 on both sides
- Divide both sides by 4
Now
ATQ to the equation x should be greater than 1 .Because if it becomes 1 then the denominator will be 0 which is impossible.
Hence x>1
Thus
Now