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tayluvsya

  • one year ago

help plez

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  1. tayluvsya
    • one year ago
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  2. ZeHanz
    • one year ago
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    You are probably aware of the formula to calculate the volume of a sphere with radius r:\[V=\frac{ 4 }{ 3 }\pi r^3\]so you only need to convert the diameter (28 cm) to the radius, and put that value into the formula...

  3. tayluvsya
    • one year ago
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    thnks @ZeHanz

  4. ZeHanz
    • one year ago
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    YW! ;)

  5. tayluvsya
    • one year ago
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    i still didnt get it right i need the answer plez

  6. tayluvsya
    • one year ago
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    its soooooooo confusing

  7. AravindG
    • one year ago
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    can u show ur working ? let me see where are u getting stuck

  8. tayluvsya
    • one year ago
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    i dont get it at all

  9. AravindG
    • one year ago
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    just do what zehanz said above :)

  10. AravindG
    • one year ago
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    just use the formula !

  11. tayluvsya
    • one year ago
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    i dont get it

  12. AravindG
    • one year ago
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    what value did u get for r ?

  13. lilcici
    • one year ago
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    28

  14. ZeHanz
    • one year ago
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    No, 28 is the diameter :(

  15. lilcici
    • one year ago
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    so 24

  16. lilcici
    • one year ago
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    \[V=\frac{ 4 }{ 3 } \pi 24^{3}\]

  17. ZeHanz
    • one year ago
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    In a circle, the radius is half the diameter, so if the diameter is 28, the radius is 14. If you want to solve problems such as the above, this knowledge is rather essential, I'm afraid...

  18. lilcici
    • one year ago
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    im srry just tired forgot to half my problem thnks for correcting me

  19. ZeHanz
    • one year ago
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    yw!

  20. lilcici
    • one year ago
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    \[V=\frac{ 4 }{ 3 } \pi 14^{3}=11494.04032\]

  21. ZeHanz
    • one year ago
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    Right! So if you round to the nearest 500, you'll have the answer option of the original problem.

  22. lilcici
    • one year ago
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    thnks again

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