How do you simplify : 2(13 - [-11+2])-[10 - 7]^2

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,