Use Summation Notation
-$$\sum _ { i = 3 } ^ { 5 } \left( i ^ { 2 } + 11 \right)$$
A) 83
B) 110
C) 57
D) 45

Question

Quizplus · Accepted Answer

The summation notation $\sum _ { i = 3 } ^ { 5 } \left( i ^ { 2 } + 11 \right)$ means to sum the expression $i^2 + 11$ for $i$ values from 3 to 5. Calculating each term: for $i=3$, $3^2 + 11 = 9 + 11 = 20$; for $i=4$, $4^2 + 11 = 16 + 11 = 27$; for $i=5$, $5^2 + 11 = 25 + 11 = 36$. Summing these gives $20 + 27 + 36 = 83$.

Use Summation Notation - ∑i=35(i2+11)\sum _ { i = 3 } ^ { 5 } \left( i ^ { 2 } + 11 \right)i=3∑5​(i2+11)

Use Summation Notation
- $\sum _ { i = 3 } ^ { 5 } \left( i ^ { 2 } + 11 \right)$