Calculus
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1. The size of a bacterial polution is 4000. Find a formula for the size, P, of the population t hours later ...
2. Abicyclist pedals along a straight road with velocity, v, ....
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The expert finds formulas for size of the population and straight road velocity. Neat, step-by-step solutions are provided.
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Vector XY = Position vector of Y - Position vector of X = (-12 - 8) + (-1 - 2) j + [10 - (-9)] k = -20 - 3 j + 19 k
(a) dP/dt = -100
dP = -100dt
P = -100dt = -100t + C
4000 = -100(0) + C C = 4000
P = -100t + 4000
When P = 0, -100t = -4000 t = 40 hours
(b) dP/dt = ...
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