. Alex launched a ball into the air. The height of the ball can be represented by the equation h = −8t 2 + 40t + 5, where h is the height, in units, and t is the time, in seconds, after the ball was launched. Determine the maximum height of the ball.

Write the converse of the following statement: if the trees have no leaves, then it is fall. if the trees have no leaves, then it is fall. the trees have no leaves, therefore it is fall. it is fall since the trees have no leaves. if it is fall, then the trees have no leaves.

What is the value of x in the equation 6(x + 1) – 5x = 8 + 2(x – 1)?

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.