What is the center of a circle whose equation is x2 + y2 + 4x – 8y + 11 = 0? (–2, 4) (–4, 8) (2, –4) (4, –8)

(01.02 lc) angle abc has point e on ray ba and point d on ray bc. points e and d are equidistant from point b. to bisect angle abc, which of the following needs to be identified for the construction? the distance between points e and d the point in the angle that is equidistant from points e and d the endpoint of rays ba and bc the point outside of the angle that is equidistant from points e and d

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?