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Hollis Group Title

What would the volume of a cube that is 0.5cm be?

  • one year ago
  • one year ago

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  1. satellite73 Group Title
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    not to sound like a wise guy, but "cube" it

    • one year ago
  2. satellite73 Group Title
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    which is why we read \((.5)^3\) as "point five cubed" instead of "to the third power"

    • one year ago
  3. goformit100 Group Title
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    |dw:1350960486596:dw|

    • one year ago
  4. tkhunny Group Title
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    It makes no sense as presented. Please probide the EXACT problem statement and maybe throw in your efforts at a solution.

    • one year ago
  5. Hollis Group Title
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    im doing a lab and i have the surface area but i dont know how to find the volume of it

    • one year ago
  6. satellite73 Group Title
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    i was assuming the problem was "find the volume of a cube if the length of each edge is \(.5\)

    • one year ago
  7. tkhunny Group Title
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    Well, in your lab, they probably told you to use useful notation. I agree with this instruction. A cube cannot be "0.5 cm". The area of a side of a cube cannot be "0.5 cm". The length of an edge can be "0.5 cm". It would help everyone, especially you, if you would write more clearly exactly what it is you mean to convey. Sloppy language and sloppy notation kill people if you are building nuclear reactors. May as well start now learning how to be more careful and exact.

    • one year ago
  8. satellite73 Group Title
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    wow

    • one year ago
  9. satellite73 Group Title
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    ikr? just compute \((.5)^3\)

    • one year ago
  10. tkhunny Group Title
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    You're still doing it. It's volume. It cannot be "cm". You must think about what you are writing. You can't just guess. That doesn't work. You still have yet to confirm that satellite73's very resonable assumption about what you meant is, indeed, correct. Is the edge measurement 0.50 cm or isn't it? What did you get for the Surface Area?

    • one year ago
  11. Hollis Group Title
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    my surface area is 1.25

    • one year ago
  12. Hollis Group Title
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    and the edge measurement is 0.5

    • one year ago
  13. tkhunny Group Title
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    Awesome. No it's not. 1.25 is a number. You need some units. Is it 1.25 cm^2? That would be a proper designation if your arithmetic were correct. The edge measurement is not 0.5. That is a number. You need some units. 0.5 cm? That would be a proper designation. Edge: E = 0.5 cm Surface Area: 6*(0.5 cm)^2 = 1.50 cm^2 Volume: (0.5 cm)^3 = 0.125 cm^2 (this may need to be 0.13 cm^2, depending on your significant figure instructions.) No fooling - please learn to use proper units. Units are your friends. They will save youfrom many, many errors. It is NOT a small thing.

    • one year ago
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