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determine the area of the region(s) bounded by the curve y = x^3 - 4x^2 - x + 4 and the x-axis for -1<x<4. i got the answer -10 not sure how

a uniform board is suspended from the ceiling and supported horizontally by two wires, A and B. the board is 2 m long and as a mass of 25kg. what is the tension in each of the two wires when a sign of 35 kg is hung on the board of a distance of .5 m from one end?

the problem is at the acme w&w company, supplies come in and are unloaded using a conveyor belt. if the belt is 10 m long and a box of supplies takes 3 seconds to travel the length of the belt, what is the averae speed of the boxes on the belt. for sum reason i want to subtract and say 7 seconds?

determine the distance traveled and the displacement. hes a problem it says the starting at 27 m and moving to 12 m. to find the displacement will b 15 and the distance traveled would be would be -15?