Which of the following shows how the number 7 can be rewritten with the difference of squares identity?
(16 - 9) = (4 + 3)(4 - 3)
(18 - 11) = (9 + 6)(9 - 5)
(25 - 4) = (5 + 2)(5 - 2)
(16 - 9) = -1(4 + 3)(4 - 3)
(64 - 1) = (8 + 1)(8 - 1)

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.

y=3x+4

step-by-step explanation:

given the points a(0,4) and b(-4, -8)

eqn of line ab: (y-4)/(x-0)=(-8-4)/(-4-0)

(y-4)/x=-12/-4=3

y=3x+4

a triangular prism is a 3 dimensional shape composed of triangles and rectangles. it is made from two triangular bases and three rectangular sides.