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Ilya [14]
3 years ago
5

Mathematics help please!

Mathematics
1 answer:
skad [1K]3 years ago
8 0
The answer should be x/x^2-2x. Then you have to simplify by x since there has a common unknown in the numerator and the denominator. So use x to divide the numerator and denominator. The final answer is 1/x-2
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Answer:

Step-by-step explanation:

To solve this problem you need the function

 

h(t) = -16t2 + v0t + h0

where t = time

v0 is the initial velocity, which in our case is 0

h0 = initial height, which in our case is 256

h(t) = 0 since we want to know when the ball will hit the ground.

 

0 = -16 t2 + 256

 

And we can solve for t

 

If we rearrange the terms we see that this is a difference of 2 squares

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0 = (16-4t)(16+4t)

Setting each factor = 0

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t = 4             t = -4

 

The second solution is discarded as time cannot be negative.

 

So the ball will hit the ground in 4 seconds.

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