The function f(t) = 5 cos(pi over 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?
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I was thinking just plug in 6 for t, but that for whatever reason that's not working. Is t in hours?
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that would give me 16..........?
actually plugging in 6 does work. It gives 11
yeah just plug it in to check
okay thank can u help me on two more plz only
A group of people were given a personality test to determine if they were Type A or Type B. The results are shown in the table below:
Type A 65 85
Type B 38 12
Compare P(Male or Type B) with P(Male | Type B).
P(Male or Type B) > P(Male | Type B)
P(Male or Type B) = P(Male | Type B)
P(Male or Type B) < P(Male | Type B)
There is not enough information.
Bobby is testing the effectiveness of a new cough medication. There are 100 people with a cough in the study. Seventy patients received the cough medication, and 30 other patients did not receive treatment. Thirty-four of the patients who received the medication reported no cough at the end of the study. Twenty of the patients who did not receive medication reported no cough at the end of the study. What is the probability that a patient chosen at random from this study took the medication, given that they reported no cough?
I thought you meant trig questions. I hate statistics. Sorry