A catapult launches a Boulder with an upward velocity of 108 ft/s. The height of the Boulder, h, in feet after t seconds is given by the function h=-16t^2+108t+30. How long does it take the Boulder to reach its maximum weight? What is the boulders maximum height?

Which system of linear inequalities is represented by the graph? !

Aubrey read 29 books and eli read 52 books what number is equal to the number of books aubrey read?

3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.