Mathematics, 24.10.2019 06:43, ambersaoulisoulfd1

In the year 2005, the average cost of a car could be modeled by the equation c= -15x2 + 20x - 3 where x is the number of years since 2005. by the year 2010 the average cost had changed, and the equation could be modeled by c= -10x2 + 30x - 2. find the difference in average cost equation for cars between 2005 and 2010.

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In the year 2005, the average cost of a car could be modeled by the equation c= -15x2 + 20x - 3 wher...