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anonymous

  • one year ago

If the edge length of a cube is 13 feet, what is the correct way to write the expression to represent the volume of the cube in exponential form?

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  1. anonymous
    • one year ago
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    @UsukiDoll

  2. anonymous
    • one year ago
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    I believe its 13 × 13 × 13

  3. UsukiDoll
    • one year ago
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    oh geez I haven't done this problem in years... but let me find the volume of the cube ok.. volume of the cube is side x side x side . A cube is a three-dimensional shape that has with equal width, height, and length measurements. so we're writing 13 three times right?

  4. anonymous
    • one year ago
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    yes

  5. UsukiDoll
    • one year ago
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    ok. I'll give an example say that we have cube of side 4. since volume of the cube = side x side x side then we have 4 x 4 x 4 or \[\large (4)^3 \]

  6. UsukiDoll
    • one year ago
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    that exponent number 3 means write 4 3 times 4 x 4 x 4 now try apply my example to the 13 x 13 x 13

  7. UsukiDoll
    • one year ago
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    uh oh... label matters volume of the cube = 4 ft x 4 ft x 4 ft (4ft)^3

  8. anonymous
    • one year ago
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    3 so (13)

  9. UsukiDoll
    • one year ago
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    yes... it should be 13^3 but I forgot to mention that the label matters as well x:/

  10. UsukiDoll
    • one year ago
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    so we need to apply the word "feet" or ft to this as well. we got it right, but if I remembered correctly, the label shouldn't be left behind.

  11. UsukiDoll
    • one year ago
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    so 13 ft x 13 ft x 13 ft = ?

  12. anonymous
    • one year ago
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    13 to the power of 3

  13. UsukiDoll
    • one year ago
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    we got it right ... just remember the labels... (13 ft)^3

  14. UsukiDoll
    • one year ago
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    lots of physics problems will make you convert first so that all units are the same, and we have to keep those labels...can't drop them.

  15. anonymous
    • one year ago
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    3 13 13 3 13 × 13 × 13 13

  16. anonymous
    • one year ago
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    so its the 2nd one

  17. UsukiDoll
    • one year ago
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    hmmmmm... yeah if it wants it in exponential form.

  18. UsukiDoll
    • one year ago
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    which is exactly what the question is asking.

  19. anonymous
    • one year ago
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    its asking how would you write it

  20. anonymous
    • one year ago
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    i believe were right

  21. UsukiDoll
    • one year ago
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    yes.. since putting it in exponential form we need the number 3 because that would mean writing 13 3 times (13)^3 = 13 x 13 x 13

  22. anonymous
    • one year ago
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    (: thank you

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