SOLUTION: Suppose a sales can be modelled by the sinusoidal equation: {{{S=200cos(pi/6)(t+2)+200}}} where t is time in months with t=0 corresponding to January. For what month are sales e

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Question 1103957: Suppose a sales can be modelled by the sinusoidal equation:
where t is time in months with t=0 corresponding to
January. For what month are sales equal to 0?

Answer by greenestamps(13200)   (Show Source): You can put this solution on YOUR website!


Presumably the equation is supposed to be
....

For the sales to be 0, must be -1; that means must be equal to .





If t=0 represents January, then t=4 represents May.

The equation indicates that sales are 0 in the month of May.

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