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OpenStudy (anonymous):
Find the perimeter of the rectangle pictured.
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OpenStudy (anonymous):
OpenStudy (anonymous):
A. 11x + 9 B. 22x - 2 C. 18x - 20 D. 11x - 1
OpenStudy (anonymous):
I'm thinking it's C.
OpenStudy (anonymous):
OpenStudy (anonymous):
add all 4 sides
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OpenStudy (anonymous):
How?!
OpenStudy (anonymous):
it's B . sorry :(
OpenStudy (anonymous):
9x-5 + 9x-5 + 2x+4 + 2x+4
OpenStudy (anonymous):
Ugh.
OpenStudy (anonymous):
Thanks anyways though!
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OpenStudy (anonymous):
perimeter = add ALL the side lengths :)
OpenStudy (anonymous):
\[2(2x+4)+2\times(9x-5)\]
OpenStudy (anonymous):
That's the somewhat complicated way to do it if you're unsure of how to calculate the perimeter... :)
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