Find the radius of the circle: Sx? + Sy? + 10x 20y + 1 = 0 A) 24 B) F V 15 9) 124
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To do this, we need to complete the square for both x and y terms. Let's start with x: Sx? + 10x + 20y + Sy? + 1 = 0 Sx? + 10x + 25 + 20y + Sy? + 1 = 25 S(x + 5)^2 + Sy? + 20y + 26 = 25 Now let's complete the square for y: S(x + 5)^2 + Sy? + 20y + 26 = Show more…
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