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[samozeeen]

dx/dt=3At^2+B
(a) Assume the equation x=At^3+ Bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. Determine the dimensions of the constants A and B. (b) Determine the dimensions of the derivative





A pyramid has a height of 481 ft, and its base covers an area of 13.0 acres. The volume of a pyramid is given by the expressionV=1/3 Bh, where B is the area of the base and h is the height. Find the volume of this pyramid in cubic meters. (1 acre = 43 560 ft2)