Why are congressional elections oftentimes "forgone conclusions"? what are the major incumbency advantages?

One party is preferred to win with probabilities that surpass 90 percent. The Republicans have improved than a 90 percent chance of winning in 231 races and the Democrats have a better than 90 percent gamble of winning in 177. This is through the responsibility of the design of the political system, which is not illustrative of the votes of persons but areas.

In over-all, incumbents have structural advantages over opponents for the duration of the elections. The judgment of elections may be single-minded by the incumbent as an alternative of a set schedule. For most political agencies, the incumbent frequently has more name acknowledgement because of their earlier work in the office.

answer: this problem has only trivial solutions, with all points on the same line. x=5 or x=7/5.

step-by-step explanation:

there are three triangles, and three unknowns: x, y=length of middle segment, and z=cos(angles marked with red arc).

we need

and law of cosines,

the three equations are

see attached image for solution.

answer; i believe its (cpr);