Write the sum using summation notation
-$18+30+42+54+66$
A) $\sum_{i=1}^{5}(12 i+6)$

B) $\sum_{i=1}^{5}(12 n+6)$

C) $\sum_{i=1}^{6}(12 i+6)$

D) $\sum_{i=0}^{5}(12 i+6)$

Question

Write the sum using summation notation
-$18+30+42+54+66$
A) $\sum_{i=1}^{5}(12 i+6)$

B) $\sum_{i=1}^{5}(12 n+6)$

C) $\sum_{i=1}^{6}(12 i+6)$

D) $\sum_{i=0}^{5}(12 i+6)$

Quizplus · Accepted Answer

The sequence starts at 18 and increases by 12 each time. The first term (18) can be represented as $12*1 + 6$. Thus, the correct summation notation is $\sum_{i=1}^{5}(12 i+6)$, where $i$ starts at 1 and goes to 5, matching the number of terms in the sequence.

Write the Sum Using Summation Notation - 18+30+42+54+6618+30+42+54+6618+30+42+54+66 A) ∑i=15(12i+6)\sum_{i=1}^{5}(12 i+6)∑i=15​(12i+6) B) ∑i=15(12n+6)\sum_{i=1}^{5}(12 n+6)∑i=15​(12n+6)

Write the Sum Using Summation Notation
- $18+30+42+54+66$ A) $\sum_{i=1}^{5}(12 i+6)$ B) $\sum_{i=1}^{5}(12 n+6)$