Fire works are fired from the roof of a 100- foot building and travel 84 feet per second. The equation h=-16t^2+84t+100 models the height (h) of the fireworks at any given time (t) seconds. How high did the fireworks get?

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

What is the domain of the step function f(x)=[2x]-1?

Twelve different video games showing substance use were observed and the duration times of game play (in seconds) are listed below. the design of the study justifies the assumption that the sample can be treated as a simple random sample. use the data to construct a 99% confidence interval estimate of μ, the mean duration of game play. 4028 4316 4816 4650 4036 5010 4833 4331 4307