23. a manufacturer is in the business of producing small models of the statue of liberty. he finds that the daily cost in dollars, c, of producing n statues is given by the quadratic formula c=n^2 - 120 + 4200. how many statues should be produced per day so that the cost will be minimum? what is the minimal daily cost?

we are given that :

cost in dollars, C, of producing n statues is given by the quadratic formula

The minimum cost will be at the x-coordinate of the vertex of the parabola represented by the given equation.

Compare with the standard equation

we get a=1, b= -120

X-coordinate of the vertex

Hence 60 statue should be produced daily to minimize the cost.

Minimum daily cost=60^2 - 120*60 + 4200=$600

$320 to $405

step by step explanation:

in one day he earns between $64 and $81

therefore if he works for 5 days, he will earn between 64 x 5 to 81 x 5

= $320 to $405