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Mathematics 8 Online
OpenStudy (iluvsoccer):

Am I right? http://prntscr.com/d8nncx

Vocaloid (vocaloid):

not quite

Vocaloid (vocaloid):

you multiplied the numerator and denominator by sqrt(7) correct?

Vocaloid (vocaloid):

what does sqrt(7) * sqrt(7) = ?

OpenStudy (iluvsoccer):

sqrt(49)

Vocaloid (vocaloid):

yes, and that equals 7

Vocaloid (vocaloid):

so your denominator should be 7, not 49

OpenStudy (iluvsoccer):

So B.

Vocaloid (vocaloid):

good!

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