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Mathematics>Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
A circle in the xy-plane has its center at (-100,221) and a diameter of 17. Which of the following is an equation of the circle?
A.(x+100)^2+(y-221)^2=7
B.(x+100)^2+(y-221)^2=2
C.(x-100)^2+(y+221)^2=7
D.(x-100)^2+(y+221)^2=2
