Which matrix represents the system of equations shown below
plz ..
see picture

Matrix D represents the given system of equation.

Step-by-step explanation:

We have been given system of equation:

And

Coefficient of first equation will form first row and the constant on right hand side will comes in the side column  and second equation will form second row the constant on right hand side will comes in the side column

Hence, the matrix will be given by:

Matrix D represents the given system of equation.

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.

may i see the picture? it would a lot, xox