General equation for a circle
(x - a)² + (y - b)² = r²
with (a,b) represents the center, (x,y) represents one of the points lie on the circle, and r represents the radius
Determine r² by substituting the points into the general equation
(x - a)² + (y - b)² = r²
(5 - (-1))² + (-4 - 2)² = r²
(5 + 1)² + (-6)² = r²
6² + 36 = r²
36 + 36 = r²
72 = r²
Determine the equation of the circle
(x - a)² + (y - b)² = r²
(x - (-1))² + (y - 2)² = 72
(x + 1)² + (y - 2)² = 72 (This is the equation of the circle)
Answer:
<h2>12 4/8</h2>
Step-by-step explanation:
1. First step
ADD
7+4=11
7+5=12
so
11
2. Second step
Now simplify
11 12/8 = 12 4/8 = 12 1/2
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Answered by: FieryAnswererGT
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