The PTA wants to cover the wet areas of the trail with wood chips. They find that one bag of wood chips covers a 3 1 2 -yard section of the trail. If there is a wet section of the trail that is approximately 50 1 4 yards long, how many bags of wood chips are needed to cover the wet section of the trail?

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 graph of a curve that passes the vertical line test is a:

What is the area of the parallelogram? 48 sqrt(3)cm2 48 cm2 24 sqrt (3) cm2 24 cm2