PLEASE HELP!! IM STUCK Suppose the path of a golf ball follows the path graphed by the function f(d) = -1.6d^2 + 3.3d + 0.2 where d is the horizontal distance the ball travels, and f(d) is the height, in meters, of the ball at d horizontal meters. Find the maximum height of the ball; use the vertex

D) 1.9 meters

Step-by-step explanation:

a= -1.6, b=3.3, c=0.2

vertex is (1, 1.9)

gdp is the best phrase!

geometry: triangles

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answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

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