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romanna [79]
3 years ago
11

PLEASE HELP!!!!!!!!!!!!! 20 points

Mathematics
2 answers:
myrzilka [38]3 years ago
8 0
The standard equation of a circle is:

(x-h)^2+(y-k)^2=r^2, where (h,k) is the center of the circle and r is the radius.

The circle in the diagram is centered at (0,0) and has a radius of 4 so:

x^2+y^2=16



harina [27]3 years ago
4 0
The center is at (0,0) so the equation will be like

x^2 + y^2 = r^2      where r = radius of the circle.

from the diagram you can see that r = 4

answer is x^2 + y^2 = 16
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