2. Two boats leave a marina at the same time. The first boat travels 6 knots at a bearing of N39°E, and the second boat travels 4 knots at a bearing of S87°W,
a. How far apart are the boats at the end of 2 hr? (10 points)
b. What is the bearing from the first boat to the second boat at that time? (10 points)

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)

The functions below show the amount of money bella and sweet t had saved after earning money for doing chores. which description best compares the two functions?

Which function can be used to model the monthly profit for x trinkets produced? f(x) = –4(x – 50)(x – 250) f(x) = (x – 50)(x – 250) f(x) = 28(x + 50)(x + 250) f(x) = (x + 50)(x + 250)