A soccer player uses her head to hit the ball up in the air from a height of 2 meters with an initial vertical volocity of 5 meters per second. The height h in meters of the ball is given by h = -4.9t2 +5t +2, where t is the time elapsed in seconds. How long will it take the ball to hit the ground if no other players touch it? using the quadratic formula , please help me , this is eight grade algebra btw

6 spoons of sugar for every 21 cups of flour

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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+

25.45584

i think its doubled. let me know

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