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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (0.9x-100)/√(0.09x) >= 1.6 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 0.9 * x - 100 ) / √ ( 0.09 * x ) >= 1.6         (1)
        From the definition field of √
         0.09 * x ≥ 0        (2 )

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    From inequality(1)：
         x ≤ 0 或  x ≥ 116.876959
    From inequality(2)：
         x ≥ 0

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    From inequalities (1) and (2)
         0 ≤ x ≤ 0 或  x ≥ 116.876959    (3)

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    The final solution set is :
         0 ≤ x ≤ 0 或  x ≥ 116.876959

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