Question

The function f(t)= 7 cos((pi/4)t)+12 represents the tide in Light Sea. It has a maximum of 19 feet when time (t) is 0 and a minimum of 5 feet. The sea repeats this cycle every 8 hours. After 2 hours, how high is the tide?

Answer 1

@kirbykirby

Answer 2

Does t= time?

Answer 3

yep

Answer 4

Uggghhhh I'm DYING

Answer 5

Plugg. 2 into T.

Answer 6

mmk

Answer 7

Or Or. If the tide is at 19 feet when T=0, Then how high will the tide be when t=2? which would probably be an easier way

Answer 8

Uggghhhhhhh IDK

Answer 9

What are your answer choices?

Answer 10

Multiply it by 2? add 2?

Answer 11

That's your answer choices o-o

Answer 12

Neither

Answer 13

I have

A. 12

B. 16

C. 8.5

D. 16.5

Answer 14

@Nurali

Answer 15

@ganeshie8

Answer 16

SOO. Just plug 2 in for t. xD

Answer 17

mmk

Answer 18

I got to f(2)= 7 cos(pi/2)+12

Answer 19

its 12

Answer 20

yayy.

Answer 21

YAY. Claps for youuu.