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sleet_krkn [62]
4 years ago
11

*PLEASE ANSWER SOON*

Mathematics
2 answers:
Ann [662]4 years ago
3 0

Answer:

The center is (-4,5) and the radius is 11.

Step-by-step explanation:

The center-radius form for a circle is:

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

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

Compare:

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

(x+4)^2+(y-5)^2=121

-h=4 implies h=-4.

-k=-5 implies k=5

r^2=121 implies r=\sqrt{121}=11.

The center is (-4,5) and the radius is 11.

poizon [28]4 years ago
3 0

Answer:

(a) center: (−4, 5); radius: 11

Step-by-step explanation:

(x+4)² + (y−5)² = 121

(x-h)² + (y-k)² = r²

r² = 121

r =11

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