The value of the formula Upper T equals StartFraction left parenthesis Upper A plus Upper B right parenthesis Upper H Over 2 EndFraction T= (A+B)H 2 for A equals = 3.29 3.29​, B equals = 7.15 7.15​, and H equals = 4.2 4.2 is nothing . ​(Round to the nearest whole number as​ needed.)