Farmer fran has some cows and some hens. between them, they have 52 legs and 38 eyes. how many hens does farmer fran have? how many cows does farmer fran have?

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

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)