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Mathematics
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OpenStudy (kaley246):
i need help
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OpenStudy (kaley246):
@SarahStyles
OpenStudy (kaley246):
@iGreen
OpenStudy (anonymous):
okay what do you need help with? what is the question?
OpenStudy (kaley246):
@SolomonZelman
OpenStudy (kaley246):
find the difference of \[9\sqrt{7} and \sqrt{28}\]
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OpenStudy (kaley246):
\[A. 7\sqrt{7}\]
OpenStudy (kaley246):
b. \[11\sqrt{7}\]
OpenStudy (kaley246):
C. \[3\sqrt{5}+10\sqrt{2}\]
OpenStudy (kaley246):
@SarahStyles
OpenStudy (kaley246):
@iGreen
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OpenStudy (anonymous):
okay give me a sec...
OpenStudy (kaley246):
can u help me with this promblem @iGreen please
OpenStudy (kaley246):
@SarahStyles do u have the answer
@jamaica25 do u have the answer
OpenStudy (anonymous):
\[7\sqrt7\]
OpenStudy (kaley246):
are u sure that the answer
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OpenStudy (anonymous):
yes
OpenStudy (anonymous):
I'm sure. :)
OpenStudy (kaley246):
Simplify \[4\sqrt{2}+\sqrt{32}-\sqrt{16}\]
OpenStudy (kaley246):
A. \[4\sqrt{2}+\sqrt{32}-4\]
OpenStudy (kaley246):
B, \[8\sqrt{2}-4\]
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OpenStudy (kaley246):
C. \[9\sqrt{2}-4\]
OpenStudy (kaley246):
D. \[4\sqrt{2}-16\]
OpenStudy (kaley246):
thats my question
OpenStudy (kaley246):
and answer choices
OpenStudy (anonymous):
do you not want to know how then you can do all of them without help
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OpenStudy (kaley246):
@SarahStyles
OpenStudy (kaley246):
@jamaica25
OpenStudy (kaley246):
@iGreen
OpenStudy (anonymous):
look at sqrt 32 ==2*4*4 take out the 4sqrt2
do likewise
answer B
OpenStudy (kaley246):
are u sure
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OpenStudy (anonymous):
yes
OpenStudy (kaley246):
the other one have a pic on it and i dont know how tto put the pic up there
OpenStudy (anonymous):
you and me both
OpenStudy (kaley246):
wait what do u mean
OpenStudy (kaley246):
@iGreen
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