Discover Questions

If the distance between vertex and directrix is 3 and the focus is (-3, 5) find four pairs of possible vertex and directrix.? If the diagonals of a parallelogram are equal in length, show that the parallelogram is a rectangle? A 240V RMS source is connected to a full wave rectifier. What is the value of the DC output? Are Alkai Metals or Halogens more reactive? 28-w=25;w=3?