A worker in a grocery store is asked to lift 30 bags of softener salt up onto a shelf that is 1.80 m above the ground. Each bag has a mass of 20 kg. How much work will the worker perform while completing this task?

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.