(x+2)(x+6)=0
in the problem shown, to conclude that x+2=0 or x+6=0, one must use the: a. multiplication property
b. division property
c. zero product property
d. transitive property

 The correct option is

(C) Zero product property.

Step-by-step explanation:  The given problem is

To conclude that x+2=0 or x+6=0, one must use which of the given properties.

We know that

for any two expressions E and F, we have

This property is known as Zero product property.

Therefore, to conclude x+2=0 or x+6=0 from the given problem (i), we must use the Zero product property.

Thus, (C) is the correct option.

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.

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