Spencer hits a tennis ball past his opponent. the height of the tennis ball in feet is modeled by the equation h(t)=-0.075t^2+0.6x+2.5 where t is the time since the tennis ball was hit meausured in seconds. how long does it take for the ball to reach its maximum height?

The quadratic function is given by the equation

The maximal height will be at vertex. Find t-coordinate of the parabola vertex:

At t=4,

it will take 4 seconds for the ball to reach the maximal height of 3.7 feet.

square root of 36/6 = 2.449489743

square root of 16/6 = 1.632993162

square root of 6 = 2.449489743

the answer is square root of 16/6 because the square root of 36/6 is the same answer as square root of 6 = 2.449489743

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.