Answers Math II CR S2 RS3 Equation of a Circle (Sec 9-3)Question 7

7

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Equation of a Circle (Sec 9-3)

Question 7 • Math II CR S2 RS3

What is the radius of a circle whose equation is x2+y2+8x−6y+21=0?

Answer

A

2 units

B

3 units

C

4 units

D

5 units

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