Mathematics, 29.05.2020 20:05, macwaters

A certain circle can be represented by the following equation.
x2 + y2 - 18x + 20y + 177 = 0
What is the center of this circle ?
What is the radius of this circle ?
units

A certain circle can be represented by the following equation. x2 + y2 - 18x + 20y + 177 = 0 What i

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A certain circle can be represented by the following equation.
x2 + y2 - 18x + 20y + 177 = 0