Mathematics, 05.07.2019 14:00 staxeeyy767
What is the radius for the circle given by the equation x^2+(y -3)^2 = 21 round your answer to the nearest
Answers: 1
![\bf\textit{equation of a circle}\\\\(x- h)^2+(y- k)^2= r^2\qquadcenter~~(\stackrel{}{ h},\stackrel{}{ k})\qquad \qquadradius=\stackrel{}{ r}\\\\[-0.35em]\rule{34em}{0.25pt}\\\\x^2+(y-3)^2=21\implies (x-0)^2+(y-3)^2=(\sqrt{21})^2\qquad \begin{cases}center~(0,3)\\r=\sqrt{21}\end{cases}\\\\\\r\approx 4.58257569495584000659\implies r = \stackrel{\textit{rounded up}}{4.583}](/tpl/images/0054/2662/65aca.png)
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What is the radius for the circle given by the equation x^2+(y -3)^2 = 21 round your answer to the n...
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