−6y2(−13x2y5) , i'm supposed to fully simplify this

You would multiply the two terms which are -6y^2 and -13x^2*y^5.

Multiplying -6 by -13 yields 78, which will be the new coefficient.

Since there is only the x^2 from the second term, that remains the same. However, there are two y values that we can multiply together: y^2 and y^5. y^2 * y^5 = y^(2 + 5) = y^7.

Therefore, your answer is 78x^2*y^7.

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.

answer: i don't understand. what are the options

step-by-step explanation: