Classify each pair of triangles as similar or not similar based on the angles given

What could explain what happened when the time was equal to 120 minutes

What are the steps to solving the inequality 3b + 8 ≥ 14?

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?