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OpenStudy (anonymous):
Help with Cube roots!
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OpenStudy (anonymous):
OpenStudy (anonymous):
@misty1212 Help me!!!
OpenStudy (misty1212):
HI!!
OpenStudy (anonymous):
Hi~!!
OpenStudy (misty1212):
\[108=3^3\times 2^2\]
does that help?
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OpenStudy (anonymous):
eeerrr....can u show me how to solve it?
OpenStudy (misty1212):
\[\sqrt[3]{108}=\sqrt[3]{3^3\times 4}=\sqrt[3]{3^3}\sqrt[3]{4}=3\sqrt[3]{4}\]
OpenStudy (misty1212):
in simpler english, the cubed root of three cubed is three
OpenStudy (anonymous):
ok..
OpenStudy (anonymous):
@tylermcmullen23
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OpenStudy (anonymous):
@misty1212 whats the answer?
OpenStudy (anonymous):
\[\sqrt[3]{108}=4.8\]
OpenStudy (anonymous):
so
OpenStudy (anonymous):
a)\[3\sqrt[3]{3}=4.3 \] so its not correct
b)\[3\sqrt[3]{4}=4.8\] so it is correct
OpenStudy (anonymous):
what about C and D?
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OpenStudy (anonymous):
ohhh didn't see that...thx
OpenStudy (anonymous):
lol, no problemo
OpenStudy (anonymous):
can u help with 2 more?
OpenStudy (anonymous):
sure thing
OpenStudy (anonymous):
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OpenStudy (anonymous):
sorry it took so long....@tylermcmullen23
OpenStudy (anonymous):
@tylermcmullen23
OpenStudy (anonymous):
its ok
OpenStudy (anonymous):
\[\sqrt[3]{56}= 3.8\] so:
a) \[7\sqrt[3]{2}=29.7\] so no
b)\[3\sqrt[3]{7}=5.7\] so nope
c)\[2\sqrt[3]{7}=3.8\] so that is your answer!
OpenStudy (anonymous):
Can u help with 1 more before u go @tylermcmullen23 ?
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OpenStudy (anonymous):
idk i got 4 mins
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