4. Three routes connect an origin and destination with performance function: C:(fi) = 8 + 0.5f1, C2(f2) = 1 + f2 and c3(f3) = 3 + 0.75f3 where cost (c) is expressed in minutes (representing link travel time) and flow (f) is expressed in thousands of vehicles per hour. (b) What is the difference in total travel time (in vehicle-minutes) if the traffic distribution conformed to a system equilibrium?

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Q: Suppose that c(x) = x³ – 20x2 + 20, 000x is the cost of manufacturing x items. Find the production…

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