Answer:
The sum of the arithmetic sequence is 110
Step-by-step explanation:
2, 4, 6, 8, 10, 12, 14, 16, 18, 20
Sn= n/2 (a1 + an)
S10= 10/2 (2 + 20)
S10= 10/2 (22)
S10= 5 (22)
S10= 110
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Answer:
The sum of the arithmetic sequence is 110
Step-by-step explanation:
2, 4, 6, 8, 10, 12, 14, 16, 18, 20
Sn= n/2 (a1 + an)
S10= 10/2 (2 + 20)
S10= 10/2 (22)
S10= 5 (22)
S10= 110