alanis1929 alanis1929

08-06-2020
Mathematics

contestada

What is the radius of the circle whose equation is x2 + y2 = 9?
81
3
9

Respuesta :

wegnerkolmp2741o wegnerkolmp2741o

08-06-2020

Answer:

3

Step-by-step explanation:

x^2 + y^2 = 9

The equation of a circle is

(x-h)^2 + (y-k)^2 = r^2

( h,k) is the center and r is the radius

x^2 + y^2 = 3^2

The radius is 3

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