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Question: problem 5 30 points demand for electricity over the next...

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Problem 5. (30 points) Demand for electricity over the next month is projected to be constant and exactly 424.00000 MW. There are 7 power turned on for the month, can be continuously regulated to produce bet ui MW, i 1,...,7. There is a fixed cost of s $ for every power plant that on, and a variable cost of ci $/MW ween li and (a) Write a mixed-integer linear optimization model to find a minimum-cost plan to operate the power plants that guarantees that the demand is satisfied. Use variables x, for power produced by plant i; and binary variables yi. At your option, either use mathematical notation or ZIMPL notation.
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