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What is the radius of a circle with the equation x2 + y2 – 14x + 10y = 250?

User JShinigami
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2 Answers

4 votes
The radius is 18, i didnt do the work because i followed the same proscess ^
User ALearner
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Equation: x^2 + y^2 − 14x + 10y = 250
1) x^2 − 14x + y^2 + 10y = 250
2) x^2 − 14x + (-14/2)^2 + y^2 + 10y + (10/2)^2 = 250 + (-14/2)^2 + (10/2)^2
3) (x − 7)^2 + (y + 5)^2 = 324
4) (x − 7)^2 + (y + 5)^2 = 18^2

Radius =18 units
User Rukiya
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