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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (449.093-x)*(862-667.79)-(x-428)*(1146.4-862) >= 0.02165*(862-677.79)*(1146.4-862) .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 449.093 - x ) * ( 862 - 667.79 ) - ( x - 428 ) * ( 1146.4 - 862 ) >= 0.02165 * ( 862 - 677.79 ) * ( 1146.4 - 862 )         (1)

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    From inequality(1)：
         x ≤ 434.189262

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    The final solution set is :
         x ≤ 434.189262

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