The answer is 1/8, hope this helps you :)
Step-by-step explanation:
2 (x-3)-4 (x+3)
Cos theta = 75/115
theta = cos^-1 (75/115)
theta = 49.2 degrees
f(x) = -10
set the equation equal to -10 and solve for x:
-10 = -x-1
Add 1 to both sides:
-9 = -x
Divide both sides by -1:
x = 9
