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ale4655 [162]
3 years ago
5

What is the radius of the circle who’s equation is x^2 + y^2 = 9

Mathematics
1 answer:
Svetllana [295]3 years ago
8 0

Answer:

r=3

Step-by-step explanation:

  • The equation of a circumference is (x-a)^2+(y-b)^2=r^2.
  • Then , in this case r^2=9, and then to know the value of r we just simply have to calculate the square root of 9, which is 3.
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