Mr. smith spent 6 hours hiking along a trail and back. he walked out at the rate of 4 miles per hour and walked back at the rate of 2 miles per hour. how long did it take mr. smith to get to the end of the trial?

Sketch the vector field vector f( vector r ) = 8vector r in the xy-plane. select all that apply. the length of each vector is 8. the lengths of the vectors decrease as you move away from the origin. all the vectors point away from the origin. all the vectors point in the same direction. all the vectors point towards the origin. the lengths of the vectors increase as you move away from the origin.