Which of the following was a cause of the french and indian war? britain and france disputed borders in the ohio river valley. french and american smugglers competed for navigation rights on the ohio river. france and native americans disputed trading rights in the ohio river valley. native americans attacked british forts in the ohio river valley.

Answer;

Britain and France disputed borders in the Ohio River Valley.

Explanation;

-The cause of French and Indian War was the fact that the French and the English wanted to claim the land where the Allegheny, Ohio, and Monongahela Rivers meet (present-day Pittsburgh), a costly war broke out.

-Both the French and the English believed their explorers were the first to claim this land where the three rivers meet.  

-Additionally, both countries wanted to keep the fur trade with the Native Americans.

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.

sonar maybe? ? i dont know the choices