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Mathematics 20 Online
OpenStudy (anonymous):

The displacement (in meters) of a particle moving in a straight line is given by s = t^2 − 7t + 18, where t is measured in seconds. (a) Find the average velocity over each time interval. [3,4] [3.5,4] [4,5] [4,4.5]

OpenStudy (aravindg):

d/dt(x)= v

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