anonymous
  • anonymous
volume of a cylinder is1131.0 cubic centimeters. the lengh of the cylinder is 40 centimeters. what is the radius of the cylinder
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
pi r^2 (40) = 1131 r =sqrt (1131/(40pi))
anonymous
  • anonymous
i dont get it
anonymous
  • anonymous
helloooooooooooooooooooo

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More answers

anonymous
  • anonymous
hello are you still there
myininaya
  • myininaya
volume of cylinder is pi* r^2*h
myininaya
  • myininaya
V=1131.0, h=40 solve for r
anonymous
  • anonymous
what does ^ mean
myininaya
  • myininaya
it means to the power of
anonymous
  • anonymous
how do i solve for r
anonymous
  • anonymous
okay thanx
myininaya
  • myininaya
use the equation to solve for r: you have V=pi*r^2*h were h=40 and V=1131
myininaya
  • myininaya
1131=pi*r^2*40
anonymous
  • anonymous
i like mtininaya better please help me
myininaya
  • myininaya
so since we want to solve for r, we need to divide both sides by 40 and pi
myininaya
  • myininaya
1131/(pi*40)=r^2
myininaya
  • myininaya
take the square root of both sides to get r
anonymous
  • anonymous
im confused sorry can u go step by step
myininaya
  • myininaya
1 Attachment
myininaya
  • myininaya
click on that up there
myininaya
  • myininaya
hows that?
myininaya
  • myininaya
I divided both sides by h and pi to get r^2 by itself. i took square root of boths to get r. and then volume=V=1131 and height=h=40 and radius=r
anonymous
  • anonymous
is it 1 centimeter
anonymous
  • anonymous
is it 1 centimeter
myininaya
  • myininaya
did you look at the attachment?
myininaya
  • myininaya
the radius is sqrt(1131/[40pi])
anonymous
  • anonymous
so to divide 1131/40pi i first mulyiply 40 times 3.14 right?
myininaya
  • myininaya
If you do that, you will get an approximation. I would stop where I stoped
anonymous
  • anonymous
bt i dnt get what the answer is because in my paper is multipal choice. a.1 centimeter b.2 centimeter c.3centimeter d.centimeter
myininaya
  • myininaya
ok so they rounded it?
myininaya
  • myininaya
i get 3 centimeters then
anonymous
  • anonymous
can u show me how u got everything in the attach file
myininaya
  • myininaya
what kindof calculator do you have?
myininaya
  • myininaya
ti83?
anonymous
  • anonymous
the one in the computer
myininaya
  • myininaya
ok so type 40
anonymous
  • anonymous
40
myininaya
  • myininaya
hit the multplication sign
myininaya
  • myininaya
type 3.14
myininaya
  • myininaya
hit the equal
myininaya
  • myininaya
remember 125.6
myininaya
  • myininaya
now do 1131 and hit the division sign then type in 125.6
myininaya
  • myininaya
then last step hit the square root sign

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