at the center of a circular pond, there is apole of 11.63 high above the surface of water from a point on the edge of aponf , a man of 1. 62 m high observed the angle of elevation of the top of the pole and found to be 60degree . find the diametre of the pond​

Let w=23 . what is the value of w + 45 ?

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(x)

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?