1. The velocity of a car after t seconds is 2t + 3 feet per second. (a) How far does the car travel between t = 4 second and t = 10 second? (b) How many seconds does it take the car to travel from starting place to 54 feet? 2. Let A(x) = , vsin' t + 1 dt, find A'(x) at x = 0, and - 3. Evaluate the following definite integrals: (a) (-4x] + 5x) dx -2 (b) /2xdx