anonymous
  • anonymous
help plez
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
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ZeHanz
  • ZeHanz
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...
anonymous
  • anonymous
thnks @ZeHanz

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ZeHanz
  • ZeHanz
YW! ;)
anonymous
  • anonymous
i still didnt get it right i need the answer plez
anonymous
  • anonymous
its soooooooo confusing
AravindG
  • AravindG
can u show ur working ? let me see where are u getting stuck
anonymous
  • anonymous
i dont get it at all
AravindG
  • AravindG
just do what zehanz said above :)
AravindG
  • AravindG
just use the formula !
anonymous
  • anonymous
i dont get it
AravindG
  • AravindG
what value did u get for r ?
anonymous
  • anonymous
28
ZeHanz
  • ZeHanz
No, 28 is the diameter :(
anonymous
  • anonymous
so 24
anonymous
  • anonymous
\[V=\frac{ 4 }{ 3 } \pi 24^{3}\]
ZeHanz
  • ZeHanz
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...
anonymous
  • anonymous
im srry just tired forgot to half my problem thnks for correcting me
ZeHanz
  • ZeHanz
yw!
anonymous
  • anonymous
\[V=\frac{ 4 }{ 3 } \pi 14^{3}=11494.04032\]
ZeHanz
  • ZeHanz
Right! So if you round to the nearest 500, you'll have the answer option of the original problem.
anonymous
  • anonymous
thnks again

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