2 you can rule all the others out as they aren't proper questions as they are lacking description
Periodic behavior is common in nature. For example, animal populations, sound waves, and the tides all exhibit periodic behavior. The ocean flows from high tide to low tide, then back over and over again. This motion can be modeled by trigonometric functions. Follow the directions below to explore one such example.
Throughout the day the depth of water at the end of a pier varies with the tides. High tide occurs at 4:00 a.m. with a depth of 6 meters. Low tide occurs at 10:00 a.m. with a depth of 2 meters.
1. Model the problem by using the given trigonometric equation to show the depth (y) of the water x hours after midnight, showing all your work. y = A cos(Bx + C) + D
Start by sketching a graph of the situation – sketch 2 cycles. (Pick appropriate intervals for the x- and y-axes and make the horizontal axis in time, not radians. Hint: What time should x = 0 be?)
Use the above graph and any extra work needed to determine the amplitude, period, and horizontal shift, and vertical shift to model the equation. Period and phase shift must be in radians.
Amplitude = _________
Period (in time) = ________ convert period to radians: ___________________________
Horizontal shift (in time) = ________ convert phase shift to radians: _______________________
(To find the phase shift use: -CB=x, where x is the horizontal shift in time.)
Vertical shift = _________
Equation: __________________________________________________________
2. A large boat coming in at noon needs at least 4 meters of water to dock at the end of the pier. Will the boat be able to safely dock? Solve the problem by using the equation to find the exact depth of the water at noon. Explain your reasoning.
Show work below: (Hint: how much time after x=0 is noon?)
Will the boat be able to dock safely? _______________________________________________________
Explain your answer/reasoning: ___________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
3. Color a fun dock/pier ocean-scape on your graph.
The writer should create sadness or heart warming text
Answer:
1. You have to accomplish a certain number of hours to complete the intership.
2. The payment is minimal and usually it's associated to a academical program.
3. You aren't a regular worker for the company.
Explanation:
1. The advantages here applys to the time you have to be in that work, it's less than a regular turn work, so you can continue with your studies or other things.
2. If you are in a certain of scolarship, you will get paid for a certain of hours made in that work, also you will pass that course and maybe they leave a place for you in that office.
3. You aren't required to be there if you aren't feeling well, you can have another job, and if you are in a scolarship program, you can get a half time job.
Greetings
It is a mythological allusion because its meaning is that of Neptune, the Roman God of the seas. Neptune is the Roman counterpart of the Greek God Poseidon.
