Who was Jackie Robinson

Explanation:

Jackie Roosevelt Robinson (1919,1972) is an African American professional baseball player who broke Major Leagues Baseball's infamous “color barrier” when he started at first base for the Brooklyn Dodgers on April 15, 1947.

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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.