In contrast to the power of a dictator in an authoritarian government, democracies derive power from A. political action committees.
B. registered voters.
C. religious hierarchies.
D. public interest groups.

d.he wanted to send diplomats to communist countries.

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.