A ball is thrown straight downward with a speed of 0. 50 meter per second from a height of 4. 0 meters. What is the speed of the ball 0. 70 second after it is released? [neglect friction. ].

Find an equation in standard form of the parabola that passes through (-2, 9), (-4, 5), and (1, 0)

17 a tourist was planning a trip by car for travelling at some constant speed for 2.5 hours. however, he found that if he increases the speed by 20 km/h he can cover the same distance in 30 minutes less time than it was planned. what was the planned speed of the tourist, in km/h?

The graph shows the populations of two species in a particular region over two decades. based on the graph, what can you conclude about the relationship between the two species? a. the two species have a parasitic relationship. b. the two species are mutualistic in nature. c. the two species exhibit commensalism. d. the two species have a prey-predator relationship. e. the two species have a familial relationship.