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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 6-hour 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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  1. tkhunny
    • one year ago
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    What is the Range of your function?

  2. anonymous
    • one year ago
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    i have no clue

  3. tkhunny
    • one year ago
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    I do not believe that. It's in the problem statement. What are the lowest and highest values?

  4. anonymous
    • one year ago
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    -10 and 50???

  5. tkhunny
    • one year ago
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    Perfect. What is the middle of that range?

  6. anonymous
    • one year ago
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    ummm idk

  7. tkhunny
    • one year ago
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    Also not believable. You have -10 and 50. Find the average.

  8. anonymous
    • one year ago
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    how do i do that?

  9. tkhunny
    • one year ago
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    What is the average of 1 and 3?

  10. anonymous
    • one year ago
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    what is an average?

  11. tkhunny
    • one year ago
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    Okay, 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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