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Mathematics 8 Online
OpenStudy (anonymous):

another triangle :/ any help?

OpenStudy (anonymous):

OpenStudy (rsadhvika):

Carol is not correct (why ?)

OpenStudy (rsadhvika):

remember the geometric mean formula ?

OpenStudy (anonymous):

yes

OpenStudy (rsadhvika):

if you see, Carol wrongly applied the geometric mean formula for the leg x

OpenStudy (austinl):

I would have to say John and then you solve for x in the equation that he made. \[(\prod_{i=1}^{n}a_{i})^{1/n}=\sqrt[n]{a_{1}a_{2}...a_{n}}\] I believe.

OpenStudy (rsadhvika):

Carol :- \(\frac{3}{x} = \frac{x}{8}\) cross multiply x^2 = 3 x 8 which is wrong !

OpenStudy (rsadhvika):

So, go with John, and solve the x

OpenStudy (anonymous):

alrighty then :)

OpenStudy (anonymous):

5.7??

OpenStudy (austinl):

The more correct answer would be in exact terms.\[\sqrt{33}\]I believe if I remember the numbers correctly.

OpenStudy (anonymous):

well wats the sqrt of 33 then

OpenStudy (austinl):

No, you misunderstand. To leave it in exact terms you leave it as the square root of 33. If you actually calculate it it is merely an approximation.

OpenStudy (anonymous):

the question never asked for exact terms

OpenStudy (anonymous):

"solve for x"

OpenStudy (austinl):

Is it multiple choice?

OpenStudy (anonymous):

no it isnt

OpenStudy (austinl):

I would go with \[\sqrt{33}\] that is the "most correct" answer.

OpenStudy (anonymous):

-_-

OpenStudy (austinl):

Put both then, geeze... but in mathematics, teachers typically want "exact" answers. Ask your teacher and you will likely see that I am correct, however for the sake of the assignment, just put both.

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