Answer:
B
Step-by-step explanation:
I added all of then and then subtracted 47 from the 50.
The answer is
4x^4-4x^3-16x^2+16x
Weight of man and paint = 160 + 5 = 165 total pounds.
Gravitational force is independent of the path taken so we can ignore the radius of the silo.
Work done = total weight x height
The problem says he climbs to the top so overall height is 90 feet
Work = 165 lbs x 90 ft = 14,850 ft-lbs
Okay
(Thanks for the points)