Currently the united states is considered the only true superpower in the world arena. however, from the close of world war ii until the late 1980s another superpower existed that often opposed the united states and consumed much of the president's energies. this superpower was

Today, Israel was now the superpower country that often opposed the United States. Superpower is a word used to describe a state or country with a commanding position, which is characterized by its extensive ability to employ influence or project power globally.

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.