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JamenS

  • 3 years ago

The amount of freight transported by rail in the United States was about 580 billion ton-miles in 1960 and has been increasing at a rate of 2.32% per year since then. (a) Write a function representing the amount of freight, in billions of ton-miles, transported annually (1960 = year 0). (b) Graph the function. (c) In what year would you predict that the number of ton-miles would have exceeded or would exceed 1 trillion (1000 billion)?

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