12. What is the length of the side labeled x cm? 8.9 cm
9.9 cm
17.0 cm
18.9 cm

Which number produces a rationale number when multiplied by 1/5

In the triangles, bc =de and ac fe.if the mzc is greater than the mze, then ab isdfelth

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)