Which equations are in standard form? check all that apply y= 2x + 5 2x + 3y = -6 4x + 3y = 12 {x+3= 6 x- y = 5 5x + 3y = 1 intro

the last one

Step-by-step explanation: form is AX+BY=C

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.

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.