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Sveta_85 [38]
4 years ago
15

Find the radius of (x-3)^2+(y+5)^2=49

Mathematics
1 answer:
Ugo [173]4 years ago
5 0
\bf \textit{equation of a circle}\\\\ 
(x- h)^2+(y- k)^2= r^2
\qquad 
center~~(\stackrel{}{ h},\stackrel{}{ k})\qquad \qquad 
radius=\stackrel{}{ r}\\\\
-------------------------------\\\\
(x-3)^2+(y+5)^2=49\implies [x-\stackrel{h}{3}]^2+[y-\stackrel{k}{(-5)}]^2=\stackrel{r}{7^2}\qquad r=7
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Answer:

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Step-by-step explanation:

By using the completing the squares method, we have to divide the coefficient of the x term by 2, square it and add to both sides

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Hello,
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4 years ago
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Step-by-step explanation:

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