Let {{MATH_1}} on the interval {{MATH_2}}. {{CMD_3}} {{ENV_4}} {{CMD_5}} We will calculate the {{CMD_6}}midpoint{{CMD_7}} Riemann sum with {{MATH_8}} rectangles. {{CMD_9}} First, compute the width of each of each of the {{MATH_10}} rectangles: {{MATH_11}} {{COMMENT_12}} {{CMD_13}} Select the picture showing the corresponding {{CMD_14}}midpoint{{CMD_15}} Riemann sum. {{CMD_16}} {{CMD_17}}{{ENV_18}} {{CMD_19}} {{CMD_20}}{{ENV_21}} {{CMD_22}} {{CMD_23}}{{ENV_24}} {{CMD_25}} {{CMD_26}}{{ENV_27}} {{CMD_28}} {{CMD_29}}{{ENV_30}} {{CMD_31}}