Brush off your linear algebra skills. Solve the following system of equations using pen and paper by Gausian elimination 2x + x =-8 x-2x -3x = 0 -X+X+2x = 3 Check your solution using MATLAB. Reaction kinetics from chemistry tells us that the rate at which a reaction occurs is proportional to the concentration of the reactants. Assume the data below represents the decay of a chemical species with time. This would correspond to a chemical equation such as 4B for which the reaction rate () could be determined to be Use the data to determine the rate constant (units should be sec). Hint. If the reaction rate represents how much the concentration changes per second, how can you estimate the reaction rate for each interval? min) 0.0 mmol/L) 7.72 0.5 1.0 5.39498 1.5 2.0 3.80 2.69 2.5 2.41 3.0 2.06 3.5 1.27 4.0 1.29 4.5 0.812 5.0 0.603 Brush off your linear algebra skills. Solve the following system of equations using pen and paper by Gausian elimination 2x + x =-8 x-2x -3x = 0 -X+X+2x = 3 Check your solution using MATLAB. Reaction kinetics from chemistry tells us that the rate at which a reaction occurs is proportional to the concentration of the reactants. Assume the data below represents the decay of a chemical species with time. This would correspond to a chemical equation such as 4B for which the reaction rate () could be determined to be Use the data to determine the rate constant (units should be sec). Hint. If the reaction rate represents how much the concentration changes per second, how can you estimate the reaction rate for each interval? min) 0.0 mmol/L) 7.72 0.5 1.0 5.39498 1.5 2.0 3.80 2.69 2.5 2.41 3.0 2.06 3.5 1.27 4.0 1.29 4.5 0.812 5.0 0.603