Temperatures in Town a Oscillate Daily Between 30° F at 4am

question 62

Multiple Choice

Temperatures in Town A oscillate daily between 30° F at 4am and 60° F at 4pm.The temperature in Town B is consistently 10° F colder than in Town A.What does the formula $H=-15 \cos \left(\frac{\pi}{12} t\right) +45$
represent?

• A)Temperature in Town A, in terms of time where time is measured in hours from 4am.
• B)Temperature in Town B, in terms of time where time is measured in hours from 4am.
• C)Temperature in Town A, in terms of time where time is measured in hours from 4pm.
• D)Temperature in Town B, in terms of time where time is measured in hours from 4pm.

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