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24 January, 15:06

the formula s=sqrt sa/6 gives the lenth of the side, s, of a cube with a surface area, SA. how much longer is the side of a cube with a surface area of 1,200 square inches than a cube with the surface area of 768 square inches?

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  1. 24 January, 15:17
    0
    A!

    2 sqrt2in
  2. 24 January, 16:53
    0
    Using the given formula, replace sa with the given surface areas and solve for s:

    Surface area = 1200

    s = √1200/6

    s = √200

    s = 14.142

    Surface area = 768

    s = √768/6

    s = √128

    s = 11.313

    Difference:

    14.142 - 11.313 = 2.829 inches

    Round answer as needed.
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