On August 10, 1936, a temperature of 120ºF. was recorded un Ponds, Arkansas. On Febrery 13, 1905, Ozark, Arkansas, recorded a temperature of -29ºF. What is the difference between these two temperatures?

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)