The Eiffel Tower in Paris, France is 324 meters tall. Jadon is looking up at the top of the tower and thinking it would be cool to string a zip line from the top of the tower. Assuming the zip line would end at the height of Jadon, who is 2 meters tall, and the angle formed between the zip line and tower would be 80°, how long a line would be needed? Round to the nearest meter. Group of answer choices

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?