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Math Help - Help please

  1. #1
    Junior Member
    Joined
    Apr 2008
    Posts
    73

    Unhappy Help please

    evaluate

    8 3/4 + 12.25 - 5 1/2

    a)16.5 b)15.5 c)15.47 d) 16



    simplify

    ( 2/3 - 1/6) divide (2/5 - 1/3)

    a) 2/3 b)15 c)1/30 d)15/2


    which of the following is the correct statement?
    a) 11< √12 < 13 b) 3< √12 < 4 c) 121< √12<144 d) 9< √12 < 16
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  2. #2
    Newbie
    Joined
    Apr 2008
    Posts
    9

    Here we go

    8\frac{3}{4}+12.25-5\frac{1}{2}=\frac{31}{2}=15.5 (b)

    \left(\frac{2}{3}-\frac{1}{6}\right)\div\left(\frac{2}{5}-\frac{1}{3}\right)=\frac{15}{2} (d)

    \sqrt{12}=2\sqrt{3}\approx3.46

    therefore (b) ( 3\textless \sqrt{12}\textless 4) is correct.
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  3. #3
    Member
    Joined
    Apr 2008
    Posts
    204
    evaluate

    8 3/4 + 12.25 - 5 1/2

    a)16.5 b)15.5 c)15.47 d) 16

    b

    simplify

    ( 2/3 - 1/6) divide (2/5 - 1/3)

    a) 2/3 b)15 c)1/30 d)15/2

    d

    which of the following is the correct statement?
    a) 11< √12 < 13 b) 3< √12 < 4 c) 121< √12<144 d) 9< √12 < 16

    b
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