Mathematics, 29.06.2019 13:30 Royalty0703
What is the radius of a circle with the equation (x − 3)2 + (y − 7)2 = 9?
Answers: 2
![\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} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ (x-\stackrel{h}{3})^2+(y-\stackrel{k}{7})^2=9\implies (x-3)^2+(y-7)^2=3^2~\hfill \boxed{r=3}](/tpl/images/0031/1677/3c93b.png)
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