Overview: 1 questions will be solved this time.Among them
           ☆1 inequalities

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 12x-2000-0.0025x^2 >= 2400 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        12 * x - 2000 - 0.0025 * x ^ 2 >= 2400         (1)

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    From inequality(1)：
         x ≥ 400

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    The final solution set is :
         x ≥ 400

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