Scientists are conducting trails on a new disinfectant for use in hospitals and doctors offices. After conducting several trials, they found that it decreases the presence of bacteria by 35% each second that it is applied to a surface. The next trail will apply it on a desk surface with approximately 20,000 cells of bacteria on it. Which logarithmic function model the time, f(n), in seconds, it will take the number of cells to decrease to a value of n?

Match each polynomial with its factorization.

Which term best describes the association between variables a and b

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: