The height of a toy rocket shot upward can be found using the formula h = -16t2 + 90t. The height of a rising balloon follows the formula h = 10t. Here, t is time in seconds and h is measured in feet. If they are released together, find the time it takes for the toy rocket and the balloon to reach the same height. Solve by graphing

Find the third,fifth and seventh term sequence described by each rule a(n)=n+1

Worth 30 points! in this diagram, both polygons are regular. what is the value, in degrees, of the sum of the measures of angles abc and abd?

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables