help with math please.?
from each equation of a circle, give the center and radius:
1.)x^2+y^2=5
2.)(x-3)^2+(y+1)^2=49
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the equation of a circle is (x-h)^3+(y-k)^2 = r^2, where (h,k) is the center and r is the radius
1. center is (0,0) and radius is the squareroot of 5
2. center is (3,-1) and radius is 7
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