Mathematics
10 Online
OpenStudy (anonymous):
NEED HELP PLEASE!!!!
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OpenStudy (anonymous):
A cone has a radius of 5 inches and a height of 18 inches.
What is the exact volume of the cone?
A.
150π in3
B.
300π in3
C.
450π in3
D.
540π in3
OpenStudy (aggie12341):
C
OpenStudy (anonymous):
in ^3
OpenStudy (anonymous):
aggie
OpenStudy (anonymous):
Do you know the equation to use?
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OpenStudy (anonymous):
idk
OpenStudy (pinklion23):
hey @aggie12341 how do you know the answer to this but you dont know the answer to 9+10
OpenStudy (anonymous):
@iGreen @ParthKohli @BlossomCake
OpenStudy (anonymous):
pinklion please no disrespect
OpenStudy (anonymous):
no insults plz @pinklion23
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OpenStudy (anonymous):
answermyquestions will help
OpenStudy (anonymous):
The formula for the volume of a cone is \(\dfrac{1}{3}\) x radius x height
OpenStudy (pinklion23):
sorry :'( i did not want to be mean
OpenStudy (anonymous):
V=πr2h
3\[Volume= \pi r^2\frac{ H }{ 3}\]
OpenStudy (aggie12341):
|dw:1426688833588:dw|
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OpenStudy (anonymous):
So many people. ._.
OpenStudy (anonymous):
Guys
OpenStudy (anonymous):
Calm down, guys!
OpenStudy (anonymous):
can u break that down @YesThisIsDog
OpenStudy (anonymous):
O.o
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OpenStudy (igreen):
\(V = \dfrac{1}{3} \pi r^2 h\)
Plug in the values but don't simplify pi
OpenStudy (anonymous):
yep @horsegirl325 \[\pi*5^2*\frac{ 18 }{ 3 }\]
OpenStudy (igreen):
\(V = \dfrac{1}{3}(5^2)(18)\)
OpenStudy (igreen):
That will give you your answer in terms of pi.
OpenStudy (anonymous):
i got 471
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OpenStudy (igreen):
No..that's wrong.
OpenStudy (igreen):
@YesThisIsDog That is also incorrect.
OpenStudy (anonymous):
No, Horse, that is correct.
OpenStudy (igreen):
Multiply 1/3 * 5 * 5 * 18
OpenStudy (anonymous):
150?
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OpenStudy (igreen):
@YesThisIsDog It doesn't want you to simplify pi
OpenStudy (igreen):
Correct
OpenStudy (igreen):
So our answer is \(150 \pi\)
OpenStudy (anonymous):
NO, 471.24 is the volume...
OpenStudy (anonymous):
thx
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OpenStudy (igreen):
Yes, and that is not a choice.
OpenStudy (anonymous):
y'all never let me finish explaining.... Jesus.
OpenStudy (igreen):
@YesThisIsDog
\(150\pi \approx 471.24\)
OpenStudy (anonymous):
GO on girl!
OpenStudy (anonymous):
I was getting to that-.-
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OpenStudy (igreen):
Yes, but it wants the exact volume.
OpenStudy (anonymous):
YES @iGreen I KNOW. I WAS JUST ABOUT TO FINISH THE DAMN THING.
OpenStudy (anonymous):
FIGHT! FIGHT! FIGHT!
OpenStudy (igreen):
xD
OpenStudy (igreen):
No need for language @YesThisIsDog
It's just that, you told her to multiply pi..
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OpenStudy (igreen):
Okay, you have your answer..
OpenStudy (anonymous):
so its 150?