Standard deviation for 20,13,5,8,10

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)

Find the greatest common factor of the followig monomials 46g^2h and 34g^6h^6

Which choice has the correct steps in graphing the solution set to the following inequality? -45_> 20x-5y