a rocket is launched from the top of a 70 ft cliff with an initial velocity of 120 feet per second. The height h, of the rocket after t seconds is given by the equation h=16t^2+120t+70. how long after the rocket is launched will it be 30 feet from the ground?

After two years, how much has been paid into interest?

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

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.