URGENT HELP PLEASE the temperature of a room during an experiment can be modeled by the function f(x)=23.7 cos (Pi x /60) +18. Where f(x) is the temperature F degrees and x is the number is hours into the experiment. What is the lowest temperature the room reached during the expriement?

Question

I got -5.7 F *

Answer 1

cos reaches -1
the range of cos or sin is from -1 to +1
so
-23.7 + 18 = -5.7 indeed

Answer 2

Thank you Damon!

Answer 3

You are welcome.