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Answer:
By definition, the derivative of f(x) is

Let's use the definition for 

Then, 
Answer:
12/38
Step-by-step explanation:
I’m not a true percent sure but I think it’s C
Answer:
∠EGF = 1/2( 180 - 50) = 1/2(130) = 65
∠CGF = 180 - 65 = 115.
Step-by-step explanation: