The following dot plot represents two data sets, A and B. Which of the following statements is not true? The range of the two sets is the same. The mode of set A is 50 less than the mode of set B. The difference between the median of each set is 40. Set B has a higher mean than set A.
image:
file:///Users/gracyguillory/Downloa ds/img_dot_plot_8.gif

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)