A new equal-tangent vertical curve has been designed to connect +1.0% grade and –0.5% grade. The PVI and PVC are located at stations 56 + 93 and 54 + 25, respectively. Determine whether the curve provides adequate passing sight distance for design speed of 60 mi/h.

Alake near the arctic circle is covered by a 222-meter-thick sheet of ice during the cold winter months. when spring arrives, the warm air gradually melts the ice, causing its thickness to decrease at a constant rate. after 333 weeks, the sheet is only 1.251.251, point, 25 meters thick. let s(t)s(t)s, left parenthesis, t, right parenthesis denote the ice sheet's thickness sss (measured in meters) as a function of time ttt (measured in weeks).

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

In triangle opq right angled at p op=7cm,oq-pq=1 determine the values of sinq and cosq