You have 600 cars in a car park. each car has 6 windows except 10 which have only 5 and 50 that have only 4 windows! a robber comes along and breaks 1 window of each car except 2 cars because people were in there. how many windows were left unbroken? ?

Find a parametrization for the curve「and determine the work done on a particle moving along γ in r3 through the force field f: r^3--r^3'where f(x,y,z) = (1,-x,z) and (a) im (γ) is the line segment from (0,0,0) to (1,2,1) (b) im (γ) is the polygonal curve with successive vertices (1,0,0), (0,1,1), and (2,2,2) (c) im (γ) is the unit circle in the plane z = 1 with center (0,0,1) beginning and ending at (1,0,1), and starting towards (0,1,1)