Which event was most influential in turning american public opinion against germany?
a. the assassination of francis ferdinand
b. the sussex pledge
c. the invasion of belgium
d. the national defense act

The correct answer is option C. "The invasion of Belgium ". During the first stages of World War II US President Franklin Roosevelt vowed that the United States would “remain a neutral nation". However American public opinion changed against Germany, when this country invaded Belgium, a country that despite of being neutral was invaded on May 10th of 1940.

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.