Latisha stands 16 feet from a wall where a scoreboard hangs. From 5 feet above the floor, the angle of elevation to the top of the scoreboard is 50°. To the nearest tenth of a foot, how far above the floor is the top of the scoreboard? ​

What is the probability of rolling a single die greater than 4

Atotal of 766 tickets were sold for the school play. they were either adult tickets or student tickets. there were 66 more student tickets sold than adult tickets. how many adult tickets were sold?

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?