On Monday, Wilbert did 20 push ups in a minute, took a 30 second rest and was able to complete a few more push-ups. He ended his Monday work out after 30 total pushups. On Friday, Wilbert did 25 push ups in a minute. He did a couple more after a 30 second break and ended his Friday with 40 push-ups. On what day did Wilbert experience a smaller percent change of push-ups? please 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.

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

cbnygjdyj

step-by-step explanation:

the answer is 13

step-by-step explanation:

5*5=25

12*12=144

25+144=169

169^2=13