What of the following is an example of independent events ?

A) rolling a 6 on a die and spinning a 7 on a spinner

B) three people are drawn successfully without replacement from a group of 25 to represent the group

C) selecting a marble from a bag of 10 different colored marbles and then selecting a second marble without putting the first back

D) drawing a jack from a standard deck of cards and then drawing a 2 without replacing the jack

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)