Answer: A
(He has the side lengths in the wrong place in the cosine ratio)
Answer:
5000
Step-by-step explanation:
In vertex form, the cost function is ...
C(x) = 3(x² -10x) +175 = 3(x² -10x +25) +175 -3(25)
C(x) = 3(x -5)² +100
The vertex is at x=5, so the cost function will be minimized when 5000 speed boats are produced.
First of all you have to make them equal to each other. What I mean is the following
3x+20=2x+40
Then you should just solve for x
<span>11.5 Not sure but it should be the answer!!
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