The picture below shows a parallelogram-shaped bookshelf Aaron bought for his wall. He rotates the shelf 90° clockwise and then 180° counterclockwise to decide how to arrange it on the wall. Which of the following statements is true about this shelf after Aaron rotates it?

A) The measure of angle Q would be 70°

B) The measure of angle R would be 70°

C) The measure of angle S would be 110°

D) The measure of angle P would be 140°​

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.