Question 605796
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The smallest value that makes sense for an input value for *[tex \LARGE t] is zero because that represents the time when the restaurant opens on any given day.  The largest value that makes sense is 12 because anything larger than that represents a time when the restaurant is either closed or you are already dealing with some subsequent day.  Therefore:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \left{x\,\in\,\mathbb{R}\,|\,0\ \leq\ x\ \leq\ 12\right}]


John
*[tex \LARGE e^{i\pi} + 1 = 0]
My calculator said it, I believe it, that settles it
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