Arie's airplanes tracked the number of television advertisements they ran along with the corresponding airplane sales. this table displays how the number of advertisements relates to their total sales. the data can be modeled by a quadratic function. what function best models the data?

21 i watched a 3 hr vid explaining it

step-by-step explanation:

du what else would it be

brainliest

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.