Answer:
substitute x as 3
Step-by-step explanation:
f (3)=2x
=2×3
=6
Answer:
137°
Step-by-step explanation:
If we know that a set of angles form one of these special relationships, we can determine the measure of the other angle. To determine the supplement, subtract the given angle from 180. 180 - 43 = 137° The supplement of 43° is 137°.