select the angle that correctly completes the law of cosines for this triangle. 12^2 + 13^2 - 2(12)(13) cos __ = 5^2

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?

Drag the tiles to the correct boxes to complete the pairs. label each function. as even , odd, or neither.

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.