2+1=3
15/3=5
split the 3 5's in ratio 2:1 and you get 10:5
Add 3x and 14. =17x hope this helps
Step-by-step explanation:
Inflection points are where a function changes concavity (the second derivative changes signs). At x = 4, f"(x) goes from negative to positive, so that's an inflection point. However, at x = 8, we don't know if f"(x) changes signs or not. So we can't say that that's an inflection point.
The answer is <span>715.583333333
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