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storchak [24]
3 years ago
11

Which equation represents a circle with a center at ( -4,9) and a diameter of 10 units

Mathematics
2 answers:
Rufina [12.5K]3 years ago
7 0

Answer: it’s d (x+4)2+(y-9)=100

Step-by-step explanation:

Took it on edgunity btw

castortr0y [4]3 years ago
3 0

Answer:

(x + 4)² + (y - 9)² = 25

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

here (h, k) = (- 4, 9) and r = 10 ÷ 2 = 5, thus

(x - (- 4))² + (y - 9)² = 5², that is

(x + 4)² + (y - 9)² = 25

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