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Svet_ta [14]
3 years ago
10

9y y2 + 6y +9 y2 + 4y + 3

Mathematics
1 answer:
marusya05 [52]3 years ago
4 0

Rewrite 9y + y2 + 6y + 9 + y2 + 4y + 3

2y² + 19y + 12

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Answer:

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Step-by-step explanation:

We can start solving this problem by doing a drawing of London Eye. (See attached picture).

From the picture, we can see that the tourists will start at the lowest point of the trajectory, which means we can make use of a -cos function. So the function will have the following shape:

y=-Acos(\omega t)+b

where:

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In this case:

A= radius = 67.5 m

\omega=2\pi f

where the frequency is the number of revolutions it takes every minute, in this case:

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so we can now build our equation:

y=-67.5cos(\frac{\pi}{15} t)+67.5

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y=-67.5[cos(\frac{\pi}{15}t)-1]

You can see a graph of what the function looks like in the end on the attached picture.

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