D Question 1 1 pts Approximate the definite integral using four rectangles of equal length and taking the right-hand endpoint of each subinterval as a sample point. Round your answer to two decimal places. 11 7 x2 + (-3) dac Co You will be asked to show your work for this problem on the Written Portion of rs) Sample Exam 4. Make sure to retain all of your work in order to complete that of