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## anonymous 5 years ago Can someone please help me i just don't get it? The volume of sphere w is approximatley 47.92π in^3. If the square factor from where w to x is 3 , what is the diameter of sphere x. A.) = 9.9 in B.)= 19.8 in C.)=143.75in D.)=4.4in

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1. anonymous

$V = {4 \over 3} \pi r^3$

2. anonymous

so its C

3. anonymous

Right?

4. anonymous

and can you explian

5. anonymous

you there ?

6. anonymous

i am, yeah.. and I don't think it's C. Would you please post your steps, so I can tell you, where you went wrong?

7. anonymous

lol sorry i met D but di i mutiply

8. anonymous

is D right?

9. anonymous

katie - i'm not telling you wheter it's right or not, cause you just want to have the correct answer and be lazy. I understand that - i hate maths, too! But please also understand that i'm not going to support you with that strategy, cause it wont work out in the end. I will however try and explain everything, IF you try to do it yourself and tell me/us where you got stuck etc etc...

10. anonymous

okay well can you explain it to me?

11. anonymous

well the formula for calculating the volume of a sphere is $V = {4 \over 3} \pi r^3$ now look at the problem and tell me, what do you already know and what do you want in the end?

12. anonymous

to find x of 3

13. anonymous

What's x ?

14. anonymous

3

15. anonymous

you there

16. anonymous

thanks for the help :(

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