Mathematics
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OpenStudy (twizttiez):
What is the approximate volume of a sphere with a radius of 9 in.?
Use 3.14 to approximate pi and express your answer in hundredths.
??? in^3
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OpenStudy (twizttiez):
@clynnew
OpenStudy (sleepyjess):
Do you know the formula for volume of a sphere?
OpenStudy (twizttiez):
Can't say I do :/
OpenStudy (sleepyjess):
\(V = \dfrac 43 \pi r^3\)
OpenStudy (twizttiez):
Would It be 305.63??
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OpenStudy (twizttiez):
@sleepyjess
OpenStudy (sleepyjess):
sorry, was afk for a minute
I am getting a lot bigger
OpenStudy (twizttiez):
Bigger? XD
OpenStudy (sleepyjess):
yah
OpenStudy (twizttiez):
Like how so?
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OpenStudy (sleepyjess):
way way bigger
OpenStudy (twizttiez):
Wait like are you getting tagged a lot?
OpenStudy (sleepyjess):
no haha, the answer I'm getting is a lot bigger than what you got
OpenStudy (twizttiez):
Oh XD
OpenStudy (twizttiez):
Well I rounded it to the nearest hundredth
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OpenStudy (sleepyjess):
how did you get 305.63???
OpenStudy (twizttiez):
The google volume calculator :/
OpenStudy (twizttiez):
I'm not gonna lie XD
OpenStudy (sleepyjess):
Okay, first, what's our radius?
OpenStudy (twizttiez):
9
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OpenStudy (sleepyjess):
Okay, so now we have \(\dfrac 43 \pi 9^3\)
We are supposed to use 3.14 for \(\pi\)
What is 4/3?
OpenStudy (twizttiez):
I got 3052.08
OpenStudy (sleepyjess):
Yep :)
OpenStudy (twizttiez):
Oh but wouldn't I round it to 305.08?
OpenStudy (sleepyjess):
That is 1/10th of the actual number...
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OpenStudy (twizttiez):
Then what do I round it to??
OpenStudy (sleepyjess):
3 0 5 2 . 0 8
thousands hundreds tens ones tenths hundreths
OpenStudy (twizttiez):
Ohhhhhhhh :| sorry
OpenStudy (sleepyjess):
It's already rounded since we only went out to the hundreths place in pi :)
OpenStudy (twizttiez):
Ohhhhhh okay so then could you recheck like 4 more of my questions??
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OpenStudy (sleepyjess):
sure :)
OpenStudy (twizttiez):
Thanks so much
OpenStudy (sleepyjess):
I'm going to put my work here for a question really quick if that's okay with you
OpenStudy (twizttiez):
Yeah no prob