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March 26, 2015

March 26, 2015

Posted by **SC** on Tuesday, December 8, 2009 at 9:44pm.

During the first 90 hours after you enter the cave, how much time will the temperature in the cave be above 31 degrees Celsius?

I need help finding the period and the phase shift:

sinusoidal model

T(t)=sin[2pi/B(x-C)]+D

D=(6+5)/2=11/2

A=(6-5)/2=0.5

B=period

C=phase shift

I need help finding B and C

- Mathh -
**drwls**, Tuesday, December 8, 2009 at 9:51pmSince the max-to-min temperature interval is 17 h, the period is 34 h. Use the time of the maximum to get the phase angle. The argument of the sin function is then pi/2.

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