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NvidiaIntely (nvidiaintely):
Find the height of a cylinder with radius 25 cm and surface area 8953.54 cm2.
32.00 cm
16.00 cm
31.00 cm
62.00 cm
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NvidiaIntely (nvidiaintely):
@Google
OpenStudy (google):
You still got that site?
NvidiaIntely (nvidiaintely):
Which site?
NvidiaIntely (nvidiaintely):
yttechy.cf
OpenStudy (google):
yttechy
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NvidiaIntely (nvidiaintely):
Yes I have it.
OpenStudy (google):
yeah why does it look like a 2004 site?
NvidiaIntely (nvidiaintely):
Because I like it that way for now.
I will change it later :)
Don't have time right now.
OpenStudy (google):
hmm ok
NvidiaIntely (nvidiaintely):
Can you help me with some questions?
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OpenStudy (google):
I can help you with this one then i need to do something
NvidiaIntely (nvidiaintely):
Okay thanks!
NvidiaIntely (nvidiaintely):
@Google, are you going to start typing it?
OpenStudy (zeesbrat3):
Do you know the formula to find the surface area of a sphere?
OpenStudy (zeesbrat3):
\[SA = 2(\pi)rh + 2(\pi)r ^{2}\]
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OpenStudy (zeesbrat3):
@NvidiaIntely
OpenStudy (zeesbrat3):
All you have to do is plug in your SA (Surface area) and your r (radius)
OpenStudy (zeesbrat3):
Therefore:
\[8953.54 cm ^{2} = 2(\pi)(25 cm)(h) + 2(\pi)(25 cm)^{2}\]
OpenStudy (zeesbrat3):
\[8953.54cm ^{2} = 50(\pi)h + 1250(\pi) \]
OpenStudy (zeesbrat3):
\[5028.54 = 157h\]
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OpenStudy (zeesbrat3):
\[h = 32.0289 cm\]
NvidiaIntely (nvidiaintely):
Thanks!
OpenStudy (zeesbrat3):
Any questions?
NvidiaIntely (nvidiaintely):
no
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