The function f(t) = 5cos ((pi/4)t) + 11 represents the tide in Dark Sea. It has a maximum of 16 feet when time (t) is 0 and a

Question

4 years ago

12

minimum of 6 feet. The sea repeats this cycle every 8 hours. After six hours, how high is the tide?
A. 11 feet
B. 6 feet
C. 8.5 feet
D. 10.5 feet

2 answers:

Naddik [55] · Answer 1 · 2021-12-25T16:02:54+03:00

4 0

Given $t = 6$
Substitute this value of 't' into the function

$f(6) = 5 cos( \frac{6 \pi }{4})+11$
$f(6)=11 feet$

Novay_Z [31] · Answer 2 · 2021-12-25T17:21:20+03:00

3 0

11 feet is the answer

The function f(t) = 5*cos ((pi/4)*t) + 11 represents the tide in Dark Sea. It has a maximum of 16 feet when time (t) is 0 and a