Answer:
A. Weight and buoyancy :P Have a good day
Step-by-step explanation:
We have the function d, representing the distance from the ground of a person riding on a Ferris wheel:
![d(t)=20\sin (\frac{\pi}{30}t)+10](https://tex.z-dn.net/?f=d%28t%29%3D20%5Csin%20%28%5Cfrac%7B%5Cpi%7D%7B30%7Dt%29%2B10)
If we consider the position of the person at t = 0, which is:
![d(0)=20\sin (\frac{\pi}{30}\cdot0)+10=20\cdot0+10=10](https://tex.z-dn.net/?f=d%280%29%3D20%5Csin%20%28%5Cfrac%7B%5Cpi%7D%7B30%7D%5Ccdot0%29%2B10%3D20%5Ccdot0%2B10%3D10)
This position, for t = 0, will be the same position as when the argument of the sine function is equal to 2π, which is equivalent to one cycle of the wheel. Then, we can find the value of t:
![\begin{gathered} \sin (\frac{\pi}{30}t)=\sin (2\pi) \\ \frac{\pi}{30}\cdot t=2\pi \\ t=2\pi\cdot\frac{30}{\pi} \\ t=60 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20%5Csin%20%28%5Cfrac%7B%5Cpi%7D%7B30%7Dt%29%3D%5Csin%20%282%5Cpi%29%20%5C%5C%20%5Cfrac%7B%5Cpi%7D%7B30%7D%5Ccdot%20t%3D2%5Cpi%20%5C%5C%20t%3D2%5Cpi%5Ccdot%5Cfrac%7B30%7D%7B%5Cpi%7D%20%5C%5C%20t%3D60%20%5Cend%7Bgathered%7D)
Then, the wheel will repeat its position after t = 60 seconds.
Answer: 60 seconds.
Answer:
Even is/means that the numbers add up to be even numbers.Also absolute Value mean is not even.
Step-by-step explanation:
Answer: We have many options:
1) 15 artists, with 2 paintings per artist.
2) 10 artists, with 3 paintings per artist.
3) 6 artists, with 5 paintings per artist.
4) 5 artists, with 6 paintings per artist.
5) 3 artists, with 10 paintings per artist.
6) 2 artists, with 15 paintings per artist.
by different artists, then the number of artists must be more than 1.
each artist shows more than 1 painting: >1 painting/artist
(30 oil paintings)/(2 paintings/artist)=15 artists
(30 oil paintings)/(3 paintings/artist)=10 artists
(30 oil paintings)/(5 paintings/artist)=6 artists
(30 oil paintings)/(6 paintings/artist)=5 artists
(30 oil paintings)/(10 paintings/artist)=3 artists
(30 oil paintings)/(15 paintings/artist)=2 artists