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OpenStudy (anonymous):
What is the radius of the circle whose equation is x2 + y2 = 8?
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OpenStudy (amistre64):
do you recall the general formula for a circle?
OpenStudy (amistre64):
it is just the pythag thrm using different letters x^2 + y^2 = r^2
OpenStudy (amistre64):
since r = radius; and r^2 = 8 ....
OpenStudy (anonymous):
?
OpenStudy (anonymous):
okayy nevermind i got it
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