Of the following, what is the greatest expenditure? transportation education social security energy

Social Security

Explanation:

According to the Center on Budget and Policy Priorities, the biggest expense out of these options is Social Security, sharing 24% of the federal budget. In comparison, education receives 3% (elementary, secondary, vocational education, higher education and research and general educational aids), transportation receives 2% and energy receives less than 4%.

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.

for this case we have the following equation:

we apply distributive property to the terms within parentheses.

subtracting 2 on both sides of the equation: