(Solved): im confused on how to do this... help please A valve on a storage tank is opened for 2 hours to rele ...

A valve on a storage tank is opened for 2 hours to release a chemical in a manufacturing process. The flow rate \( R \) (in liters per hour) at time \( t \) (in hours) is given by the exponential model \( R=1,165.54 e^{-0.6155 t} \). Use the definite integral to approximate the number of liters of chemical released during the first 2 hours. Round your answer to two decimal places. \( 582.86 \) liters 1,594.86 liters \( 1,813.43 \) liters \( 1,340.70 \) liters, \( 870.38 \) liters