If the mean number of new cavities for those who ate an apply a day was statistically significantly smaller than the mean number of the new cavities for those who at less than one apple a week could one conclude that the lower number of new cavities can be attributed to eating an apple a day? Explain ?

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.

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.