Try It Use what you just learned about complementary and vertical angles to solve
this problem. Show your work on a separate sheet of paper.
15 In rectangle PRST, ST and RT are extended as shown in the diagram below. The measure
of PTR is x and the measure of ZRTS is (2x - 57).
Find the measure of ZUTV.
Find the measure of ZSTV.

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.