math
posted by garry .
mat e. matics starts to construct a series of triangles. all the triangles are drawn such that the sum of the base and height are always 10cm. determine the maximum area of all these triangles.

area=1/2 b*h
I suspect the maximum will occur then base=height. 
I need solution A quadratic functions completing the square a player bumps a volleyball with an initial vertical velocity of 20 ft/s
1/Write a functions h in standard form for the boll`s height in feet in terms of the time t in seconds after the ball is hit
2/Complete the square to rewrite h in vertex form
3/what is the maximum height of the ball?
4/What if...?Suppose the volleyball were hit under the same conditions, but with an initial velocity of 32 ft/s .How much higher would the ball go?
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