Which coordinates best represents the solution to the following pair of equations?
y = −2x + 13
y = 2x − 3
a.) (-4, -5)
b.) (4, 5)
c.) (-4, 5)
d.) (4, -5)

  q

step-by-step explanation:

each line from a vertex to the midpoint of the opposite side is called a median. the point where the medians intersect, point q, is the centroid.

the centroid of δabc is point q.

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.