Which formula would be used to calculate the middle

Last updated: 7/29/2022

Which formula would be used to calculate the middle rectangle approximation of 0∫1 4xdx using five subintervals? M5= (0.4)[4(0.1) + 4(0.3) + 4(0.5) + 4(0.7) + 4(0.9)] M5 = (0.2) [4(0.1) + 4(0.3) + 4(0.5) + 4(0.7) + 4(0.9)] M5 (0.2) [4(0.2) + 4(0.4) + 4(0.6) + 4(0.8) + 4(1.0)] M5= (0.2)[4(0.0) + 4(0.2) + 4(0.4) + 4(0.6) + 4(0.8)]