canoabra95 canoabra95

17-02-2021
Mathematics

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x^2y+y^2-30x+221=0 find the radius

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ChiWaWa ChiWaWa

17-02-2021

Answer:

2

Step-by-step explanation

Let's complete the square. We get:

(x^2-30x)+y^2+221=0

(x^2-30x+225)+y^2+221-225=0

(x-15)^2+y^2-4=0

(x-15)^2+y^2=4

By analyzing this, we see that the radius is just :[tex]\sqrt{4}[/tex]=2

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