Answer is (4,-3) I’m pretty sure it’s right sorry if it’s wrong
You probably jsut need to use law of cosines in order to solve for angle A

or
Answer:

Step-by-step explanation:
Isolate the variable by doing operations to both sides of the equation.
The work is shown below:

No,27.93 equals <span>20.00+7.00+0.9+0.03</span>