Shamik lives 60 miles away from a friend. Of those 60 miles, 50 are on the highway, while the rest are in a town where the speed limit is 20 miles per hour less than the highway speed limit.
a. write expressions for shanks highway travel time and town travel time in terms of his highway speed (s) when he visits his friend. assume drives the appropriate speed limit for the entire trip.

Is there a direction u in which the rate of change of f(x,y)equals=x squared minus 3 xy plus 4 y squaredx2−3xy+4y2 at p(1,2) equals 14? give reasons for your answer. choose the correct answer below. a. no. the given rate of change is smaller than the minimum rate of change. b. no. the given rate of change is larger than the maximum rate of change. c. yes. the given rate of change is larger than the minimum rate of change and smaller than the maximum rate of change.