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aristotlatl:
What is the radius of a circle whose equation is (x + 5)2 + (y – 3)2 = 42?
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darkknight:
the formula of a circle is x+h)^2 + (y+k)^2 = r^2 So whatever eqn ou have rn is r^2 if 42 is r^2 What would r be?
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