1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Integral Average Question

  1. Oct 16, 2005 #1
    A certain city, the temp in degrees Farenheit, t hrs after 9 am was modeled by the function: T(t)=50 + 14 sin (Pi t / 12)
    Find avg temp during the period from 9 am to 9 pm.

    What i did was take the Int[50 + 14 sin (Pi t / 12),t,0,9]... but this doesnt produce the answer. It says model after 9 am so at 9=0 for a , b = 10 for 9pm?
    Any help?
     
  2. jcsd
  3. Oct 16, 2005 #2
    shouldnt b be 12 and not 10 since it is 12 hours from 9am - 9pm
     
  4. Oct 16, 2005 #3

    Fermat

    User Avatar
    Homework Helper

    Set your limits a,b to a = 9 and b = 21 (using 24-hr notation)
     
  5. Oct 16, 2005 #4
    i tried 9 to 21 and it didnt work before...
     
  6. Oct 16, 2005 #5
    it works from 0 to 12, thanks, dont know why i thought 10 DUH
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Similar Discussions: Integral Average Question
Loading...