"are the marks one receives in a course related to the amount of time spent studying the subject? to investigate this mysterious possibility, a student took a random sample of 10 students who had enrolled in an accounting class last semester. he asked each to report his or her mark in the course and the total number of hours spent studying accounting. these data are listed here."

You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:

Find the values of the variables in the kite

Solve this 364x-64x=300x and 12(x2–x–1)+13(x2–x–1)=25(x2–x–1)