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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -20*(x-35)^2+22500 ≥4180 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        -20 * ( x - 35 ) ^ 2 + 22500 ≥4180         (1)

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    From inequality(1)：
         4.734508 ≤ x ≤ 65.265492

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    The final solution set is :
         4.734508 ≤ x ≤ 65.265492

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