- #1
Lucretius
- 152
- 0
I have a math test on the chapter on Tuesday, and my teacher handed out the pre-test on Thursday. There are a few problems I am totally stumped on, and figured the math geniuses here could give me some help. Some I can get somewhere with, some I don't know where to begin.
Here is one problem I am stuck on:
At CI State Park, the average height of the tide in feet t hours after hight tide is given by the function
[tex]h(t)=2\cos\left(\frac{2\pi}{13}\left(t-2\right)\right)+4[/tex]
a. What is the smallest positive value of t corresponding to the low tide?
The answer to a is 8:30. How did they come up with this answer?
Here is one problem I am stuck on:
At CI State Park, the average height of the tide in feet t hours after hight tide is given by the function
[tex]h(t)=2\cos\left(\frac{2\pi}{13}\left(t-2\right)\right)+4[/tex]
a. What is the smallest positive value of t corresponding to the low tide?
The answer to a is 8:30. How did they come up with this answer?