The ratio of the weight of an object on planet a to the weight of the same object on planet b is 100 to 3. if the elephanet weight 300 pounds on planet a, find the elephanet's weig

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)

An elevator travels 310 feet in 10 seconds. at that speed, how far can't his elevator travel in 12 seconds?

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)