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The equation is\[h=4\cos[\pi/6.2t-8]\]

My answer is 3.0505. The correct answer is 2.1

is that the given equation

Yes. I had to figure it out myself, but eventually I came to that.

we have to take a look that function

What about?

I know that in this case, t=2, because of differetn start time.

A=4

hold on let me work this out

okay, we have 12.4 as the period and we have the max depth as 4m at 8 am

Affirmative?

the the min should be at 6.2

MY value for "b" is pi/6.2.

Wadda bout my textbook?

your right

yay.

im just lost man, let me see if i can get some more help

Ok. I'm got tons more of these too. Heh.

Internet timed out. Sorry. Haven't been able to fix that.

I may be making a consistent error in every calc i do.

I think I know why. T is not in a bracket with 8. As in (t-8)