TIME MEMAINING 10
59:42
In the diagram, which angles are vertical angles?
Select two options.
O ZABE and ZABC
B
O ZABE and ZCBD
O ZABE and ZEBD
O ZABC and EBD
ZABC and ZCBD

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)