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Find the sum of the arithmetic sequence. 3, 5, 7, 9, ..., 21 Choices: 39 120 20 23
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Find the sum of the arithmetic sequence.

3, 5, 7, 9, ..., 21
Choices:
39
120
20
23

User Luke Wenke
by
7.3k points

1 Answer

3 votes

Answer:

23

Explanation:

5-3=2

7-5=2

21+2=23

its adding 2 each time the numbers change

User Polli Ester
by
7.6k points
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