Stephanie rode in a bike race at an average speed of 10 miles per hour. She planned to take her first break before she reached the 65-mile point on the race. Which
inequality models how many hours Stephanie rode before she took her first break?
CLEAR
SUBMIT
SUBMIT
5.5
6
6.5
7
7.5
8
5.5 6 6.5
7
7.5
8

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?