Death valley california has the lowest elevation in the united states. it's elevation is 282 ft below sea level. mount alaska has the highest elevation in the united states. it its elevation is to 20320 feet above sea level. in the united states

Which expression gives the area of the triangle shown below

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)

Which of the following circles have their centers in the third quadrant?