A firework is launched from the ground. The quadractic function y=-4.9x^2+120x models the fireworks height in meters above the ground after x seconds. About how long long is the firework in the air?

For what values of x is x2 + 2x = 24 true?

What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)

This assignment is past the original due date o this data is from a sample. calculate the mean, standard deviation, and variance 16.7 11.1 46.7 14.8 13.3 16.6 18.5 47.3 42,8 show the following answers to 2 decimal places. sample mean- sample standard deviation ( use the standard deviation above for your calculation.) sample variance ooops- now you discover that the data was actually from a population! so now you must give the population standard deviation.