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  • 08-03-2017
  • Mathematics
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What is the radius of a circle with the equation x2 + y2 – 14x + 10y = 250?

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Аноним Аноним
  • 08-03-2017
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
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Аноним Аноним
  • 08-03-2017
The radius is 18, i didnt do the work because i followed the same proscess ^
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