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Mathematics 20 Online
OpenStudy (anonymous):

Medal + Fan awarded http://imgur.com/ZXM0w2g

OpenStudy (anonymous):

@zaibali.qasmi @xapproachesinfinity

OpenStudy (anonymous):

Please explain this one

OpenStudy (solomonzelman):

\(\huge\color{blue}{ P=2( \frac{3 \sqrt{5}}{\sqrt{7}} +\frac{2 \sqrt{3}}{\sqrt{5}}) }\)

OpenStudy (anonymous):

simply add them both and take LCM...

OpenStudy (anonymous):

So it's B?

OpenStudy (solomonzelman):

Multiply the top and bottom of 1st fraction times `√7` and top and bottom of second fraction times `√5`.

OpenStudy (solomonzelman):

\(\huge\color{blue}{ P=2( \frac{3 \sqrt{35}}{7} +\frac{2 \sqrt{15}}{5}) }\)

OpenStudy (solomonzelman):

then expand the expression. \(\huge\color{blue}{ P= \frac{6 \sqrt{35}}{7} +\frac{4 \sqrt{15}}{5} }\)

OpenStudy (solomonzelman):

Option C, even though it is wrong, since it is incomplete, but it is the BEST option

OpenStudy (anonymous):

Oh my bad C

OpenStudy (solomonzelman):

You don;t need to fan me or medal.

OpenStudy (anonymous):

Don't worry I will! You guys are helping me out a lot

OpenStudy (xapproachesinfinity):

it is c. he explained it while i was doing it to see what anwser is right

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