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09-10-2020
Mathematics

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Write the standard form of the equation of the circle with radius 7 and center (4,−9).

Respuesta :

learners learners

11-10-2020

Answer:

x^2 + y^2 - 8x + 18y + 48 = 0

Step-by-step explanation:

(x-h)^2 + (y-k)^2 = r^2 where (h,k) is the centre of circle and r is the radius of circle. hence the standard form of equation can be obtained by expanding

(x-4)^2 + {y-(-9)}^2 = 7^2

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