In the summer, humidity interacts with the outdoor temperature, making a person feel hotter due to a reduced heat loss from the skin caused by higher humidity. The temperature-humidity index, Upper T Subscript h, is what the temperature would have to be with no humidity in order to give the same heat effect. One index often used is given byUpper T Subscript h Baseline equals 1.98 Upper T minus 1.09 (1 minus Upper H )(Upper T minus 58 )minus 56.9, where T is the air temperature, in degrees Fahrenheit, and H is the relative humidity, expressed as a decimal. Find the temperature-humidity index if Tequals86degrees and Hequals55%.