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Unofficialllyy
 one year ago
I need help with this geometry question. I will fan and medal.
Unofficialllyy
 one year ago
I need help with this geometry question. I will fan and medal.

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Unofficialllyy
 one year ago
Best ResponseYou've already chosen the best response.2The main tank has a radius of 70 feet. What is the volume of the quartersphere sized tank? Round your answer to the nearest whole number. You must explain your answer using words, and you must show all work and calculations to receive credit.

Unofficialllyy
 one year ago
Best ResponseYou've already chosen the best response.2I know that I have to use the formula for volume of a sphere, and then once I get the volume I multiply it by 4, right? So I have written down: \[V=\frac{ 4 }{ 3 } \Pi r^3\] Then I plug in 70 for r: \[V=\frac{ 4 }{ 3 } \Pi(70)^3\] Is this correct so far?

Unofficialllyy
 one year ago
Best ResponseYou've already chosen the best response.2@welshfella could you see if you could help? :)

Loser66
 one year ago
Best ResponseYou've already chosen the best response.0why multiple by 4? the quarter sphere is 1/4 of the sphere. Not 4x Volume of the sphere.

Unofficialllyy
 one year ago
Best ResponseYou've already chosen the best response.2Or divide by 4? I dont know

Unofficialllyy
 one year ago
Best ResponseYou've already chosen the best response.2But am I right so far with what I have? After I got \[V=\frac{ 3 }{ 4} \Pi (70)^3\] I don't know how to solve this.

Loser66
 one year ago
Best ResponseYou've already chosen the best response.0ha!! dw:1437249945106:dw

Unofficialllyy
 one year ago
Best ResponseYou've already chosen the best response.2But couldn't figure out the volume first and then divide by 4?

Loser66
 one year ago
Best ResponseYou've already chosen the best response.0Either way, you can find volume first and then take \(V\div 4\) Or, take it directly as what I showed. Both them give you the same answer

Unofficialllyy
 one year ago
Best ResponseYou've already chosen the best response.2Yeah but I need help with solving for the volume

Loser66
 one year ago
Best ResponseYou've already chosen the best response.0why? just replace r = 70 and you got it

Unofficialllyy
 one year ago
Best ResponseYou've already chosen the best response.2I know that part. I don't know where to start though.

Loser66
 one year ago
Best ResponseYou've already chosen the best response.0\(V =\dfrac{4}{3}\pi r^3= \dfrac{4}{3}* 3.1415* (70)^3\)

Unofficialllyy
 one year ago
Best ResponseYou've already chosen the best response.2So then I do 70^3 first right?

Loser66
 one year ago
Best ResponseYou've already chosen the best response.0put it into calculator, then divide the answer by 4

Unofficialllyy
 one year ago
Best ResponseYou've already chosen the best response.2I cant just use a calculator, I have to show all calculations

Unofficialllyy
 one year ago
Best ResponseYou've already chosen the best response.2Then I multiply pi and 343000?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Technically, you can do the multiplication in any order that you want (70^3 can be re written into 70*70*70) I personally find it easier to do that first

Unofficialllyy
 one year ago
Best ResponseYou've already chosen the best response.2okay so now i have \[V=\frac{ 3 }{ 4} \Pi(343000)\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You can multiply it by either pi or 4/3

Unofficialllyy
 one year ago
Best ResponseYou've already chosen the best response.2So if I multiply it by pi I get \[V=\frac{ 4 }{ 3 }(343000\pi)\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes. Then you would multiply that by 4/3 to get the total volume of the sphere

Unofficialllyy
 one year ago
Best ResponseYou've already chosen the best response.2In decimal form thats 1436755.04024173

Unofficialllyy
 one year ago
Best ResponseYou've already chosen the best response.2Then I divide that by 4 to get the volume of a quarter sphere correct?

Unofficialllyy
 one year ago
Best ResponseYou've already chosen the best response.2359188.76006043

Unofficialllyy
 one year ago
Best ResponseYou've already chosen the best response.2And it has to be rounded to the nearest whole number

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so you would take the tenths place and see if it is above or below 5

Unofficialllyy
 one year ago
Best ResponseYou've already chosen the best response.2Yes it is above

anonymous
 one year ago
Best ResponseYou've already chosen the best response.05 and above, give it a shove, 4 and below leave it down low

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thats how I remember weather to round up or down

Unofficialllyy
 one year ago
Best ResponseYou've already chosen the best response.2so it would be 359189?

Unofficialllyy
 one year ago
Best ResponseYou've already chosen the best response.2Thank you so much!!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0No problem :) give credit to @Loser66 too. They helped out in the beginning

Unofficialllyy
 one year ago
Best ResponseYou've already chosen the best response.2Yes they did, thank you as well @Loser66 !!

Loser66
 one year ago
Best ResponseYou've already chosen the best response.0I am ok, I have a bunch of medals, don't care !!
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