Answer:
-12
Step-by-step explanation:
x/4 - 5= -8
Add 5 to each side
x/4 -5+5 = -8+5
x/4 = -3
Multiply each side by 4
x/4*4 = -3*4
x = -12
Answer:
163
Step-by-step explanation:




6x + 4x + 10 = 180
10x = 170
x = 17
mCA = 4(17) + 10 = 68 + 10 = 78
Answer:
mCA = 78°
Answer:
The graph of f has an inflection point at x = 0.
Step-by-step explanation:
An inflection point occurs when the second derivative changes signs. Since f"(x) is decreasing and has an x-intercept at 0, it changes signs from + to -, so there is an inflection point at x = 0.