He diagonal of a TV set is 52 inches long. Its length is 28 inches more than the height. Find the dimensions of the TV set. The height of the TV set is nothing inches. The length of the TV set is nothing inches.

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?