AN OBSERVER SPOTS A PLANE FLYING AT A 42 DEGREE ANGLE TO HIS HORIZONTAL LINE OF SIGHT. IF THE PLANE IS FLYING AT AN ALTITUDE OF 15000 FT., WHAT IS THE DISTANCE FROM THE PLANE TO THE OBSERVER

Choose the linear inequality that describes the graph. the gray area represents the shaded region. a: y ≤ –4x – 2 b: y > –4x – 2 c: y ≥ –4x – 2 d: y < 4x – 2

Find the missing variable for a parallelogram: a = latex: 32in^2 32 i n 2 h = b = 6.3 in (1in=2.54cm)

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?