SOLUTION: The cost, C, in dollars, to hire landscapers to weed and seed a local park can be modelled by C equals 9 x squared minus 72 x plus 1050, where x is the number of landscapers hired
Question 1168586: The cost, C, in dollars, to hire landscapers to weed and seed a local park can be modelled by C equals 9 x squared minus 72 x plus 1050, where x is the number of landscapers hired to do the work. How many landscapers should be hired to minimize the cost? What is the minimum cost? Answer by htmentor(1343) (Show Source):
You can put this solution on YOUR website! The cost will be minimized where the derivative of the cost function is zero.
C(x) = 9x^2 - 72x + 1050
dC/dx = 0 = 18x - 72 -> x = 4
C(4) = 9*16 - 72*4 + 1050 = 906
Thus the minimum cost is $906.