The height of a ball in meters after it has been hit, is modeled by h = -8x^2 + 48x, where x is the time in seconds after it is hit and h is the time in feet. Sketch a graph and fine:
how long is the ball in the air?

What is its maximum height?

Solve these problems: 1.what is the perimeter of an equilateral triangle with sides measuring 6cm? 2. a regular pentagon has sides measuring 3.2 cm. what is its perimeter? 3. a regular decagon has sides of 3.5mm . what is it’s perimeter? 4. a regular octagon has a perimeter of 64cm. what is the length of one of the sides? 5. a regular hexagon has a perimeter of 72mm . what is the length of one of the sides? 6. what is the perimeter of a rhombus with sides measuring 11m?