gmanbom
08.06.2020 •
Mathematics
What is the radius of the circle whose equation is x2 + y2 = 9?
81
3
9
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Ответ:
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
Ответ:
Hey there!
6+12+100+30+70
18+100+30+70
118+30+70
148+70
218
Hope this helps :)