I'd say 100 even, don't know if this is a real question or not.
Answer:
Exact form: 
Decimal form: 
The solution for x is: The solution for x is of 10.455º
Step-by-step explanation:
We are given the following equation:

Placing into the desired format, the exact format is:

In the decimal part, we divide 8 by 9. So

Solving for x:
We apply the inverse sine. So




The solution for x is of 10.455º
I'm pretty sure it'd just be a parabola with is axis at 0 facing upwards and the inverse would be facing downwards
Hbuggguvhvuvhvhvyvhvhvuvjvjvhvhvhvyvgvgvg g g h g h g g g g g. Gvgvhvh
Factor out -4
-4(x^3+3x^2-2x-6
Factor out x^2
-4(x^2(x+3)-2x-6)
Factor out -2
-4(x^2(x+3)-2(x+3))
Factor out x+3
-4(x+3)(x^2-2)