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50 POINTS!!!From 1970 to 1990, the average cost of a new car C (in dollars) car aproximated by the model C= 30.5p^2 + 4192 where t is the number of vears since 1970. During which year was the average cost of a new car $7242?

Sagot :

Answer:

The answer is 1980

Step-by-step explanation:

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