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Mathematics 53 Online
OpenStudy (anonymous):

Find x.

OpenStudy (anonymous):

OpenStudy (zzr0ck3r):

between w and y

OpenStudy (anonymous):

hahahahaha

OpenStudy (anonymous):

ohhh lol i get sorry about that i had to upload the image after i posted the question sorry :P

OpenStudy (zzr0ck3r):

I know; I just had to take the joke.

OpenStudy (anonymous):

lolz :P

OpenStudy (anonymous):

so im wondering if i should use like 2^2 + 6^2... or something... i dont really get it

OpenStudy (anonymous):

nope need that too

OpenStudy (anonymous):

so do i solve from the equation i just gave?

OpenStudy (anonymous):

looks like by similar triangles \(\frac{x}{8}=\frac{2}{x}\)

OpenStudy (anonymous):

is that x/6 = 2/x or did i read that wrong? its kinda tiny :P

OpenStudy (anonymous):

on account of \(x\) is the short side of the large triangle, which has hypotenuse 8, and the hypotenuse of the small triangle, which has short side 2

OpenStudy (anonymous):

\[\frac{x}{8}=\frac{2}{x}\]

OpenStudy (anonymous):

oh okay thanks :) so it should be x^2/16

OpenStudy (anonymous):

which is pretty convenient, since the first step in solving would be to "cross multiply" and get \[x^2=16\]

OpenStudy (anonymous):

which would end up as 4 right?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

awesome! thanks a bunch :D

OpenStudy (anonymous):

yw

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