Which of the following ordered pairs lies on the graph of y = tanx? (-5pi/2, -1) (-9pi/4, 1) (pi/6, square root of 3) (5π, 0)

What is this inequality notation? t is less then or equal to 2

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.

Aculture started with 3000 bacteria. after 5 hours it grew to 3900 bacteria. predict how many bacteria will be present after 9 hours