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Dimas [21]
3 years ago
12

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

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
Mathematics
2 answers:
Naddik [55]3 years ago
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]3 years ago
3 0
11 feet is the answer


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