From calculus, to determine the maxima or minima of the graph, get the derivative of the equation and equate to zero. So, we derive first the equation of the graph and equate to zero.
C = 0.25x² - 80x + 30000
dC/dx = 0 = 0.5x - 80 + 0
0.5x = 80
x = 80/0.5
x = 160 units
The minimum cost (although not asked) is:
C = 0.25(160)² - 80(160) + 30000
C = $23,600
The answer is 160 units.
Answer:
Show me problem
Step-by-step explanation:
I need a problem to solve it
(x+4)
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Answer: √
10
−
75
Step-by-step explanation:
ANSWER
x=3, y=-4
EXPLANATION
The given system is :
First equation:

Second equation:

Let us multiply the first equation by 7 to get,
Third equation;

Let us multiply the second equation too by 10 to get,
Fourth equation:

Subtract the fourth equation from the third equation:


Divide both sides by 59.

Put y=-4 into the second equation and solve for x.





The solution is x=3, y=-4