Use sigma notation to write the sum

Question

Quizplus · Accepted Answer

Since the lower limit of the sum is 3 and the upper limit is 11, we can write the sum using sigma notation as $\sum\limits_{i=3}^{11} a_i$, where $a_i$ are the terms being added together. The subscript of the first term is given as 11ebbd4d_3edf_3940_8a0a_2ff3ab285b26_TB8202_11, and the subscripts of the subsequent terms increase by 1 for each term, so the 8th term would have a subscript of 11ebbd4d_3edf_3947_8a0a_48eef9261d33_TB8202_11. Only choice D has a subscript of 11ebbd4d_3edf_3944_8a0a_9792d8d4c0d5_TB8202_11, which is the subscript of the fourth term in the sum.

Use Sigma Notation to Write the Sum