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Circles in the Coordinate Plane Practice
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Which of the following is the equation of a circle with center (5,-2) and a radius if 3?
A. (x-5)^2 +(y+ 2)^2= 9 radius
Which of the following is the equation of the circle shown below.
C. (x-3)^2+(y+5)^2= 64
The equation of a circle is (x+8)^2 + (y + 9)^2= 169
A. Center =(-8,-9) radius 3
The equation of a circle is (x-7)^2 + y^2=225
B. center (7,0) radius 15
A circle with center (-2,6) passes through the point (-2,10).
A. (x+2)^2 + (y-6)^2 = 16
A circle with center (1,2) passes through the point (0,6).
C. (x-1)^2 + (y-2)^2 = 17
Write the equation of the circle shown here.
D. (x-7)^2+(y+2)^2 = 52
Which of the following equations is the equation of the circle with diameter AB and points A (0,0) and B (8,6)?
C. (x-4)^2 + (y-3)^2
A close estimate of the radius of the earth's equator is 3,960 miles. Which of the following is the equation of the equator, if the center of the earth is considered to be the origin
C. x^2+Y^2 = 15,81,600
Part B which of the following is the length of a 1 degree arc on the equator, to the nearest mile.
C. 69 miles
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