Ask your own question, for FREE!
Mathematics 14 Online
OpenStudy (anonymous):

Help with Cube roots!

OpenStudy (anonymous):

OpenStudy (anonymous):

@misty1212 Help me!!!

OpenStudy (misty1212):

HI!!

OpenStudy (anonymous):

Hi~!!

OpenStudy (misty1212):

\[108=3^3\times 2^2\] does that help?

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

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?

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):

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 ?

OpenStudy (anonymous):

idk i got 4 mins

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!