A ball is thrown upward from the top of a 40 foot high building at a speed of 80 meter per second. The ball's height above ground can be modeled by the equation
H (t) = -16t? + 80t + 40
a. When does the ball reach the maximum height?

Which interval for the graphed function contains the local maximum? [–3, –2] [–2, 0] [0, 2] [2, 4]

Phyllis and chen are saving money to go to a football game. each friend starts with some money and saves a specific amount each week. phyllis made a graph to show the total she has saved at the end of each week. chen wrote an equation to show the total, y, he has saved at the end of each week, x. y = 15x + 15 compare the amount that each friend has when both friends start saving. select the correct answer from the drop-down menu to complete the statement. phyllis starts with $ and chen starts with $

The amount of data left on the cell phone six gb for 81.5 gb of data is used how much data is available at the beginning of the cycle