Question

PLEASE HELP ASAP!

For a particular area, the average temperature, y, in degrees Fahrenheit x days after January 1 is given by the function y=30sin(2π/365(x−89))+65. The average temperature of 45° occurs twice a year. Find the number of days after January 1 for each of these occurrences.

The average temperature is 45° both 47 days and 280 days after January 1.

The average temperature is 45° 47 days January 1.

The average temperature is 45° both 50 days and 314 days after January 1.

The average temperature is 45° both 47 days and 314 days after January 1.

Answer 1

The Average Temperature Of 45 Occurs Twice A Year. Find The Number Of Days After January 1 For Each Of These Occurrences.