Isabelle1111 Isabelle1111

26-05-2017
Mathematics

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Write a standard equation of the circle(please specify which answer is for which)

Write a standard equation of the circleplease specify which answer is for which class=

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apologiabiology apologiabiology

26-05-2017

21.
the equation of a circle with center at (h,k) and radius r is
(x-h)²+(y-k)²=r²

so
(x-1)²+(y-2)²=5²
(x-1)²+(y-2)²=25

22.
the equation of a circle with center at (h,k) and radius r is
(x-h)²+(y-k)²=r²

so
(x-(-3))²+(y-5)²=2²
(x+3)²+(y-5)²=4

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