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22 July, 09:44

Whats an irrational number between 9.7 and 9.9

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  1. 22 July, 11:33
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    9.5 < x < 9.7

    square it

    9.52 < x2 < 9.72

    90.25< x2 <94.09

    So pick any number between 90.25 and 94.09 to be x2, as long as it's not a perfect square. So if you pick 91, then

    x2 = 91

    x = 91 - - √ → irrational

    approximation is 9.54
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