If arc FBE is 300°, what is the measure of angle 4?

With: label the vertices and all the elements needed. find x

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.

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?