Use Summation Notation
-$\sum _ { i = 4 } ^ { 7 } 9 i$
A) 198
B) 63
C) 99
D) 135

Name: Use Summation Notation -$\sum _ { i = 4 } ^ { 7 } 9 i$ A) 198 B) 63 C) 99 D) 135
Brand: Quizplus
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Question

Quizplus · Accepted Answer

The summation notation $\sum _ { i = 4 } ^ { 7 } 9 i$ means to sum the values of $9i$ for $i$ ranging from 4 to 7. Calculating each term: $9(4) + 9(5) + 9(6) + 9(7) = 36 + 45 + 54 + 63 = 198$.

Use Summation Notation - ∑i=479i\sum _ { i = 4 } ^ { 7 } 9 i∑i=47​9i

Use Summation Notation
- $\sum _ { i = 4 } ^ { 7 } 9 i$