The function h(t) = -4.9t^2 + 19.6t is used to model the height of an object projected in the air where h(t) is the height (in meters) and t is the time in seconds). What is the domain and range?

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

Which inequality has a dashed boundary line when graphed ?

Non-euclidean geometry was discovered when, in seeking cleaner alternatives to the fifth postulate, it was found that the negation could also be true a. true b.false