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anonymous

  • one year ago

20.) What is the volume of the sphere? Round the answer to the nearest cubic unit. http://assets.openstudy.com/updates/attachments/55bff878e4b03325500374c7-lollygirl217-1438675119264-as.jpg my answer: 2145 cm^3. Is that correct? 24.) What is the scale factor of a cube with volume 1331 ft^3 to a cube with volume 85184ft^3? my answer: 4:1. Is that correct?

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  1. anonymous
    • one year ago
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    @ganeshie8 @zepdrix

  2. anonymous
    • one year ago
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    @midhun.madhu1987 @Miracrown

  3. anonymous
    • one year ago
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    @aryandecoolest

  4. anonymous
    • one year ago
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    @nincompoop

  5. anonymous
    • one year ago
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    @saseal

  6. anonymous
    • one year ago
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    yes they are correct

  7. anonymous
    • one year ago
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    you sure?

  8. anonymous
    • one year ago
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    yes use the formula for a sphere do u know it?

  9. anonymous
    • one year ago
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    i basically guessed on both of them

  10. anonymous
    • one year ago
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    lucky guesses then

  11. anonymous
    • one year ago
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    *sigh* okie lemee show me steps

  12. anonymous
    • one year ago
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    \[V =\frac{ 4 }{ 3 }\pi r^3\]

  13. anonymous
    • one year ago
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    this is the formula

  14. anonymous
    • one year ago
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    now in your diagram the diameter is 16 which means the radius=diameter/2=8

  15. anonymous
    • one year ago
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    Now plug it into the formula \[V=\frac{ 4 }{ 3 }\pi 8^3\]=2144.66058485cm^3

  16. anonymous
    • one year ago
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    and round that to 2145 cm^3

  17. anonymous
    • one year ago
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    nvm im good. the second one was not correct though btw

  18. anonymous
    • one year ago
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    u could have waited :( i didn't know there was a second one

  19. anonymous
    • one year ago
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    me sowwy

  20. anonymous
    • one year ago
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    for second one , take the cube root of each, that will give the side length then the scaling factor is the ratio of linear measurements or ratio of he side measurements....

  21. anonymous
    • one year ago
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    It would be rather 1:4 i guess

  22. anonymous
    • one year ago
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    lol i fell asleep

  23. anonymous
    • one year ago
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    lol XD

  24. anonymous
    • one year ago
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    @Icedragon50 its okay man

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