A crate of mass 5 Kg is pulled directly up a rough slope, of inclination 10 degrees, by a constant force of magnitude 20N, acting at an angle of 30 degrees above the horizontal. Find the work done by the force as the crate moves a distance of 3m up the slope.

-8

step-by-step explanation:

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

inch

step-by-step explanation:

yard and mile are too big.

step-by-step explanation:

the triangles are similar. therefore the corresponding sides are in proportion:

              cross multiply

            divide both sides by 32