PLEASEEE HELP, ITS A SUMMATIVE Topic is quadratics
It is raining heavily and traffic police have been monitoring a local highway. According to their records the length of the highway id 4.63km. They observe that at any one time there are 50 cars traveling in one direction on the highway. At what speed should the cars be traveling in order to avoid not hitting the car in front, should they need to stop immediately?

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