rojoturtles rojoturtles

08-03-2017
Mathematics

Answered

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

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Anonymous Anonymous

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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Anonymous Anonymous

08-03-2017

The radius is 18, i didnt do the work because i followed the same proscess ^

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