The field Archie will cover with grass seed is rectangular and measures 100 yards long by 60 yards wide.
B. Write an equation that describes the relationship between the number of
square yards (x) of ground to be covered and the number of scoops () of
grass seed needed. Use the equation to determine the number of scoops
of grass seed Archie needs to cover the entire field. Show or explain all
your work.

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)