Respuesta :

Answer:

6450 dollars.

Step-by-step explanation:

c(x) = 0.1x^2 - 34x + 9340    Convert to vertex form.

0.1(x^2 - 340x) + 9340

c(x) = 0.1[ (x - 170)^2 - 28900)  + 9340

c(x) = 0.1(x - 170)^2 - 2890 + 9340

c(x) = 0.1(x - 170)^2 + 6450.