Question

temperature in C on Feb 5 and 6 can be approximated using T(t)=20=5cos(pi/12(t-3)) where t is time in hours after noon on Feb 5 What were the min and max temps and what time did they occur. Could I get some help please

Answer 1

the min of a cosine function occurs when the argument is pi

Answer 2

The minimum occurs at T = 20 + 5cos( Pi )
when pi/12 (t-3) = Pi

Answer 3

so 1500 hours?

Answer 4

help please :)

Answer 5

Did you solve
pi/12 (t - 3) = pi

(t-3) = 12

t = 15