Tuesday

October 21, 2014

October 21, 2014

Posted by **Kim** on Sunday, March 9, 2014 at 9:56pm.

L(t) = 12 + 2.8 sin[(2π/365)(t − 80)].

Use this model to compare how the number of hours of daylight is increasing in Philadelphia on March 21 and April 21. (Assume there are 365 days in a year. Round your answers to four decimal places.)

- Calculus Help -
**Steve**, Monday, March 10, 2014 at 5:11am3/31: t=90

4/21: t=111

L'(t) = 2.8cos[(2π/365)(t − 80)](2π/365)

now just plug in t=90 and t=111

The answer, of course, will be in hr/day.

**Answer this Question**

**Related Questions**

Calc..Help Please - A model for the length of daylight (in hours) in ...

math - In Philadelphia the number of hours of daylight on day t (where t is the ...

Math - The number of daylight hours in a day is harmonic. Suppose that in a ...

Trigonometry - The number of daylight hours in a day is harmonic. Suppose that ...

Precalculus II - 1. The number of hours of daylight D(t) in Halifax at day t can...

calculus - The number of hours of daylight D depends upon the latitude and the ...

11th grade-Calculas - The number of hours of daylight D depends upon the ...

Math- Trigonometry - The flowering of many commercially grown plants in ...

Precalculus - Use one of the identities cos(t + 2πk) = cos t or sin(t + 2&#...

Astronomy - Physics - Now, wait until the planet is at the winter solstice (12:...