What is m∠N? here is a quadrilateral MNPQ in which side MN is parallel to side PQ and side NP is parallel to side MQ. The measure of angle NMQ is (6x-2) degrees and the measure of angle NPQ is (4x+36) degrees.

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?