Britney throws an object into the air with an initial vertical velocity of 27 feet per second from a platform that is 10 feet above the ground. about how long will it take the object to hit the ground? 1 second 2 seconds 3 seconds 4 seconds

Hi!

So assuming that the coefficients of the acceleration is -16, this is how it would go:

-16x^2 is the acceleration

27x is the initial vertical velocity

10 is the initial height

so it would be set up as -16x^2 +27x +10

the best way would be to graph it and find the zeros and use the positive one

Or you can plug the answer choices in for x and see which answer makes the y come out to be 0

As you can see in the picture below. the point that crosses at the x-axis is 2

So your answer is 2!

I hope this helps and I am very sorry if this is wrong!

equal to

step-by-step explanation:

geometry: triangles

solvers

lessons

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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