Area of a equalatiral triangle with 1 cm on each side

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)

How many 3/8s are in 6 plz someone tell me now

30 ! the graph shows the number of siblings different students have. select from the drop-down menus to correctly complete the statement.