Jenna has a bag that contains 7 red marbles and 25 blue marbles. she selects a marble at random, and then, without replacing the first one, selects another marble at random.

what is the probability that jenna selects a blue marble and then a red marble? round your answer to the nearest percent.

p(blue and red) ≈ %

Find the cosine function that is represented in the graph.

In the given triangle, ∠aed ∼ ∠ abc, ad = 6.9, ae = 7.2, de = 5.2, and bc = 10.2. find the measure of bd and ce. round your answer to the nearest tenth.

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 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)