Find the sum.
-$$\sum _ { i = 1 } ^ { 6 } ( 5 i - 4 )$$
A) 81
B) 26
C) 6
D) 75

Name: Find the sum. -\[\sum _ { i = 1 } ^ { 6 } ( 5 i - 4 )\] A) 81 B) 26 C) 6 D) 75
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Question

Quizplus · Accepted Answer

The sum can be calculated by plugging in the values of $i$ from 1 to 6 into the given expression $5i - 4$ and then adding them together. Doing so, we get: $$ (5*1-4) + (5*2-4) + (5*3-4) + (5*4-4) + (5*5-4) + (5*6-4) = 1 + 6 + 11 + 16 + 21 + 26 = 81 $$

Find the Sum ∑i=16(5i−4)\sum _ { i = 1 } ^ { 6 } ( 5 i - 4 )i=1∑6​(5i−4)

Find the Sum $\sum _ { i = 1 } ^ { 6 } ( 5 i - 4 )$