Two containers hold water side by side both in the shape of a cylinder. container A has a diameter of 16 ft and a height of 19ft. container b has a diameter of 20 feet and a height of 15 feet. container a is full of water and the water is pumped into container b until container a is empty. to the nearest tenth what is the percentage of container b after the pumping is complete

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?