A Florida roof company must check that each roof truss it sells is made of two congruent triangles.

The company knows that ZBAG > ZDEF and AC = EC. What additional
information will it need in order to prove AACF = AECG by SAS?

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)