Ask your own question, for FREE!
Mathematics 21 Online
OpenStudy (anonymous):

sqrt 81/ sqrt 7

OpenStudy (anonymous):

options 9/7 9sqrt7/7 sqrt7/7 9/sqrt7

OpenStudy (amistre64):

sqrt are like blobs of jelly; they cen combine and separate at will

OpenStudy (amistre64):

i recall alot of texts saying that sqrt in the bottom tho are not proper .... for some reason

OpenStudy (anonymous):

\[\frac{\sqrt {81}}{ \sqrt {7}} =\frac{\sqrt {9*9}}{ \sqrt {7}}\]

OpenStudy (anonymous):

you think can simplify it from there?

OpenStudy (amistre64):

there are 2 equal options .....

OpenStudy (anonymous):

no look again

OpenStudy (anonymous):

9 / sqrt 7

OpenStudy (anonymous):

good job you are right\[\frac{9 }{ \sqrt {7}}\]

OpenStudy (amistre64):

\[\frac{9\sqrt7}{7}=\frac{9}{\sqrt7}\] \[\frac{\sqrt7}{7}=\frac{1}{\sqrt7}\] \[\frac{\sqrt7\sqrt7}{7\sqrt7}=\frac{1}{\sqrt7}\] \[\frac{7}{7\sqrt7}=\frac{1}{\sqrt7}\] \[\frac{1}{\sqrt7}=\frac{1}{\sqrt7}\]

OpenStudy (amistre64):

so the issue is; which one is "proper" form

OpenStudy (anonymous):

yess!!!! thank you so much

OpenStudy (anonymous):

I think the issue is where the boundaries are since I can interpret in a completely different way if I try.

OpenStudy (anonymous):

That's why I don't trust answer choices....

OpenStudy (anonymous):

thanks anyway amistre

OpenStudy (amistre64):

i read it right ... confused myself as a sipped the coffee

OpenStudy (amistre64):

http://www.purplemath.com/modules/radicals5.htm no radicals under

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!