Answer:
Radius = 5
center is (19,-1)

Step-by-step explanation:
Two points in the plane, (19,4) and (19,−6), represent the endpoints of the diameter of a circle.
Distance between the points is calculated using formula


diameter = 10
radius = diameter divide by 2
Radius = 5
midpoint is the center of the circle


(19,-1)
Equation of the circle

h,k is the center and r is the radius
h=19 and k=-1 , r=5

Answer:
Step-by-step explanation:
A negative number times a negative number is a positive.
Hope this helps you!
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The midpoint of the 2 points is (0.5, 7)
Hope this helps you
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The answer is the letter c. 3