Statements Reasons m21 + m22 = 180
m23 + m24 = 180
21 and 22 are supp.
23 and 24 are supp.
21 = 24
m2 1 + m2 = m23 + m24
Statements
Reasons

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)