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anonymous
 one year ago
The temperature of a chemical reaction ranges between −10 degrees Celsius and 50 degrees Celsius. The temperature is at its lowest point when t = 0, and the reaction completes 1 cycle during a 6hour period. What is a cosine function that models this reaction?
f(t) = −30 cos pi over 3t + 20
f(t) = −60 cos pi over 3t + 30
f(t) = 30 cos 6t + 20
f(t) = 60 cos 6t + 30
anonymous
 one year ago
The temperature of a chemical reaction ranges between −10 degrees Celsius and 50 degrees Celsius. The temperature is at its lowest point when t = 0, and the reaction completes 1 cycle during a 6hour period. What is a cosine function that models this reaction? f(t) = −30 cos pi over 3t + 20 f(t) = −60 cos pi over 3t + 30 f(t) = 30 cos 6t + 20 f(t) = 60 cos 6t + 30

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tkhunny
 one year ago
Best ResponseYou've already chosen the best response.0What is the Range of your function?

tkhunny
 one year ago
Best ResponseYou've already chosen the best response.0I do not believe that. It's in the problem statement. What are the lowest and highest values?

tkhunny
 one year ago
Best ResponseYou've already chosen the best response.0Perfect. What is the middle of that range?

tkhunny
 one year ago
Best ResponseYou've already chosen the best response.0Also not believable. You have 10 and 50. Find the average.

tkhunny
 one year ago
Best ResponseYou've already chosen the best response.0What is the average of 1 and 3?

tkhunny
 one year ago
Best ResponseYou've already chosen the best response.0Okay, you are not prepared to solve this problem. Way are you in this class? Is this a placement exam? If it is, you should get this one wrong so that you can be in the right class.
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