Answer:
3
Step-by-step explanation:
4 -1 = 3
So you just subsitute -3 for x
f(-3)=-(-3)+15
f(-3)=3+15
f(-3)=18
answer is C
18
You can use a tangent:

We have opposite = 17 and adjacent = x.

substitute:
cross multiply
multiply both sides by √3

divide both sides by 3

Use the Pythagorean theorem:

-------------------------------------------------------------------------------------------------
Other method.
triangle.
The sides are in the ratio 
Therefore

Answer: A)
Step-by-step explanation:
Answer:
bet send u it when im done
Step-by-step explanation: