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anonymous
 one year ago
*Area of the base equals*
a)8 pi square units
b)16 pi square units
c) 64 pi square units
anonymous
 one year ago
*Area of the base equals* a)8 pi square units b)16 pi square units c) 64 pi square units

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0https://suwannee.owschools.com/media/g_geo_2013/8/group100.gif

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1I'm juggling one question back in forth.. so if I'm slow to reply sorry in advanced. Anyway we are given a cylinder dw:1435669876398:dw

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1the formula for area of the base of a cylinder is A = pi(r^2)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay. But every time I put it into the calculator it shows: either 39.4384 or 50.24

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1I know.. we don't calculate the pi part.. leave it as is. so if r = 4 what is r^2?

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1looking at the choices... I think it doesn't want you to calculate the pi.. it's just finding the r and then squaring it

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Well then it's just 16

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1A=pi(4^2) A=pi(16) =16 pi yeah

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thanks. So would it be about the same thing for this problem?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0A cylinder has a volume of 245 pi cubic units and a height of 5 units. The diameter of the cylinder is a) 7 units b) 14 units c) 49 units

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1I think we need the diameter of the cylinder formula.

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1yeah we need a different formula for that.

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1\[\large V = \pi r^2h\]

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1so given height is 5 units volume is 245 pi cubic units . Looks like we're solve for r and then the diameter is twice the radius (d=2r) .. AHA! We need to find the radius first

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1ok let V = 245, and h = 5

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Well that didn't come out right

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1\[\large 245 = \pi r^2(5)\]

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1that's to make the font large

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1oh are you trying to use the equation tool? right click show math as > tex command and it will have this code or text you can copy and paste. And then click on the equation tool and paste.

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1so we are solving for r that would mean that r needs to be by itself

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1our first goal is to have r^2 by itself .. and then afterwards we can take the square root

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1yeah it should have that ^ that carrot sign

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1\[\large V = \pi r^2h \]

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1anyway back to this \[\large 245 = \pi r^2(5) \] we need r^2 by itself so what do we need to do?

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1should we add both sides? subtract both sides? multiply both sides? or.. divide both sides by 5pi

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0divide both sides by 5 pi

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1yes. \[\large \frac{245}{5 \pi} = r^2\]

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1now we take the square root of both sides

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1we're not done.. we need to take the square root on both sides

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1UH OH! I need to refresh my screen is crazy

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I neded to digest a little

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1ok so taking the square root of both sides \[\large \sqrt{ \frac{245}{5 \pi} }= \sqrt{r^2}\] what is the square root of r^2

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1we need to take the square root of r^2 so we can have r

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1then once we have our r we can get the diameter. which is d =2r

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1that's not a choice for answers that would've yielded d = 5.. that's not right

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0No wait. 5 was the height not the diameter

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1wait a minute we are solving for r.

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1we have already plugged in V and h... now we need to take the square root of both sides. We're almost there

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I was thinking that the diameter is 7

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1\[\large \sqrt{ \frac{245}{5 \pi} }= \sqrt{r^2} \] becomes ??? what is the square root of r^2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.049 times 3.14 = 153.86

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1once we find r we can find the diameter which is d = 2r

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1What? ok no substituting we are solving for r we need the square root of r^2 .

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1I want an r by itself

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1we have square rooted both sides.. which is correct. Now we just need the square root of r^2 Then we have this \[\[\[\large \sqrt{ \frac{245}{5 \pi} }= r\] \]

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1now the diameter is d=2r so d = 2( That whole square root)

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1\[\large \sqrt{r^2} \rightarrow r^{\frac{2}{2}} \rightarrow r^1 \rightarrow r \]

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1so now our \[d=2(\sqrt{\frac{245}{5 \pi}})\]

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1so we just need 245 divided by 5 pi... take the square root of that result and multiply by 2

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1yes. so our diameter is 7.9 kind of a dangerous number because we can round up to 8

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.17 units would be the closest to the answer.. though the real answer is 7.9

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay. Look I'm sorry if I aggravated you. It's been a long couple of weeks and I'm really tired

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thanks for the help. I really appreciate it

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1it's ok ... I'm also tired.. in fact it's almost 4 in the morning. I need zzz's before my dad get suspicious again.

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1that's why I had my latex wrong... r to the first power is just r if it was r^0 that would've been 1. But I should always take the advice of never do math while tired.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yeah I can connect with that

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1I have to go sleep. night

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Really. Wow it's 9:55 AM here

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I live in Florida btw
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