The equation (x + 6)2 + (y + 4)2 = 36 models the position and range of the source of a radio signal. Describe the position of the source and the range of the signals.
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Step-by-step explanation:
(x+6)2+(y+4)2=36
2x+12+2y+8=36
2x+2y+12+8=36
2(x+y)+20=36
2(x+y)=36-20
2(x+y)=16
x+y =16/2
x+y=8
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