The velocities (in mi/hr) of an automobile moving along a straight highway over a 2-hr period are given in the following table. 1.5 t (hr) v (mi/hr) 0.75 0.25 50 0.5 1.25 1.75 50 60 60 55 70 50 60 80 a. Sketch a smooth curve passing through the data points. b. Find the midpoint Riemann sum approximation to the displacement on [0,2] withn=2 and n = 4. ..... a. Choose the correct graph below. A. OB. C. OD. Av 80- 70- 60- Av 80- 70- Av 80- 70- Av 80- 70- 60- 60- 60- 50- 40- 50 40- 30- 20- O 05 50- 50- 40- 30- 40- 30- 30- 20- O 0.5 20- 0.5 20- 1.5 0.5 1.5 1.5 1.5 b. The midpoint Riemann sum approximation to the displacement on [0,2] with n= 2 is 110 miles.

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