When many american indian slaves died of european diseases, they were replaced with
a paid workers from europe
b slaves transported from mexico
slaves brought to the americas from africa
d people who worked in exchange for part of the yearly crop
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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.