Evaluate e-\dfrac12fe−
2
1

fe, minus, start fraction, 1, divided by, 2, end fraction, f when e=15e=15e, equals, 15 and f=2f=2f, equals, 2.

How is the equation of this circle written in standard form? x2 + y2 - 6x + 14y = 142 a) (x - 3)2 + (y + 7)2 = 200 b) (x+ 3)2 + (y - 7)2 = 200 (x - 6)2 + (y + 14)2 = 142 d) (x+6)2 + (y- 14)2 = 142