2.a firecracker is launched vertically from the ground with an initial velocity of 48 ft/sec. (a) write a quadratic function h(t) that shows the height, in feet, of the firecracker t seconds after it was launched. use the general equation h(t) = -16t2 + v + h where iv is the initial velocity and h is the initial height.

5.25 ounces

step-by-step explanation:

divided 3/4 and 6

geometry: triangles

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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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