summermathis5 summermathis5 04-06-2023 Mathematics contestada QUESTION 10 From 1980 to 2000, the average cost of a new car C (in dollars) can be approximated by the model C = 45.5t^2 +6100 where t is the number of years since 1980. During which year was the average cost of a new car $ 11,600 ?
