Problema Solution
We did not find results for: during the period 1990-2002 the average cost D in dollars for a new domestion car and the average cost I in dollars for a new imported car can be modeled by D=442.14t+14,433 and I=-137.63t^2+2705.2t+15,111 where t is the number of years since 1990
Write an equation that gives the total average cost in dollars for domestic and imported cars as a function of the number of years since 1990
What is the total average cost for domestic and imported cars in 2000
Answer provided by our tutors
Write an equation that gives the total average cost in dollars for domestic and imported cars as a function of the number of years since 1990:
We add the models D=442.14t+14,433 and I=-137.63t^2+2705.2t+15,111 to find the model M for domestic and imported cars as a function of the number of years since 1990:
M = (442.14t+14,433) + (-137.63t^2+2705.2t+15,111)
M = -137.63t^2 + 3,147.34t + 29,544
What is the total average cost for domestic and imported cars in 2000:
t = 2000 - 1990
t = 10 years
M = -137.63*10^2 + 3,147.34*10 + 29,544
M = $47,254.4
the total average cost for domestic and imported cars in 2000 is $47,254.4.