1. The formula to find the Heat Index, HI, when given the temperature, T, in Fahrenheit degrees and the Relative Humidity, R, is:



Expand by multiplying these three matrices together to get a polynomial of sixteen terms.





2. Now use this expansion to determine the Heat Index if the Temperature is 93 degrees Fahrenheit and the Relative Humidity is 21%.
Answer = 89.31 degrees.

3. Use this formula to determine the Heat Index if the Temperature is 100 degrees Fahrenheit and the Relative Humidity is 60%.
Answer = 129 degrees.

4. Use this formula to determine the Heat Index if the Temperature is 92 degrees Fahrenheit and the Relative Humidity is 46%.
Answer = 96 degrees.