Answer:
x = -5
Step-by-step explanation:
the first step is calculate the sum.
-9x - 31 = 14
Then move the constant to the right side and change the sign.
-9x = 14 + 31
Then add the numbers
-9x = 45
Then divide both sides of the equation by -9
x = -5
Slope: (y2-y1)/(x2-x1)
(3-9)/(-1-2) = -6/-3 = 2
The rate of change is 2
The answer to the question
Angle A = arctan(12/5) = 67.4 degrees
Angle A = arccos(5/13) = 67.4 degrees
yes the answer was the same
