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@welshfella could you see if you could help? :)

why multiple by 4? the quarter sphere is 1/4 of the sphere. Not 4x Volume of the sphere.

Or divide by 4? I dont know

\(\div 4\)

ha!! |dw:1437249945106:dw|

But couldn't figure out the volume first and then divide by 4?

Yeah but I need help with solving for the volume

why? just replace r = 70 and you got it

I know that part. I don't know where to start though.

\(V =\dfrac{4}{3}\pi r^3= \dfrac{4}{3}* 3.1415* (70)^3\)

So then I do 70^3 first right?

put it into calculator, then divide the answer by 4

I cant just use a calculator, I have to show all calculations

yeah do 70^3 first

ok!!

Then I multiply pi and 343000?

okay so now i have \[V=\frac{ 3 }{ 4} \Pi(343000)\]

I mean 4/3

yep thats right

Then what?

You can multiply it by either pi or 4/3

So if I multiply it by pi I get \[V=\frac{ 4 }{ 3 }(343000\pi)\]

yes. Then you would multiply that by 4/3 to get the total volume of the sphere

In decimal form thats 1436755.04024173

Then I divide that by 4 to get the volume of a quarter sphere correct?

yep

And it has to be rounded to the nearest whole number

so you would take the tenths place and see if it is above or below 5

Yes it is above

5 and above, give it a shove, 4 and below leave it down low

Thats how I remember weather to round up or down

so it would be 359189?

yep

Thank you so much!!

Yes they did, thank you as well @Loser66 !!

I am ok, I have a bunch of medals, don't care !!