Integral Average Question

by badtwistoffate
Tags: average, integral
badtwistoffate is offline
Oct16-05, 04:37 PM
P: 85
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?
Phys.Org News Partner Science news on
Review: With Galaxy S5, Samsung proves less can be more
Making graphene in your kitchen
Study casts doubt on climate benefit of biofuels from corn residue
mathmike is offline
Oct16-05, 06:39 PM
P: 212
shouldnt b be 12 and not 10 since it is 12 hours from 9am - 9pm
Fermat is offline
Oct16-05, 06:51 PM
HW Helper
P: 879
Set your limits a,b to a = 9 and b = 21 (using 24-hr notation)

badtwistoffate is offline
Oct16-05, 09:57 PM
P: 85

Integral Average Question

i tried 9 to 21 and it didnt work before...
badtwistoffate is offline
Oct16-05, 10:06 PM
P: 85
it works from 0 to 12, thanks, dont know why i thought 10 DUH

Register to reply

Related Discussions
Average of an integral question Calculus & Beyond Homework 9
Gaussian integral as an average Advanced Physics Homework 12
Average Value Question Calculus & Beyond Homework 4
Integral average of surface brightness for a galaxy Advanced Physics Homework 0
Average Momentum Integral Calculus & Beyond Homework 1