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OpenStudy (anonymous):
The legs of an isosceles triangle have lengths x + 1 and -x + 7 . The base has length 3x - 3. What is the length of the base? A. 4 B. 6 C. 3 D. cannot be determined
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OpenStudy (anonymous):
I know it's not C
OpenStudy (anonymous):
set x+1=-x+7 because it is an isosceles triangle then you will get x=3
OpenStudy (anonymous):
and plug 3 into the equation 3x-3
OpenStudy (anonymous):
So B?
OpenStudy (anonymous):
yes
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OpenStudy (anonymous):
Thank you
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