What are some of the physical impacts of isolation?

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?

Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?