If the sequence 2, 4, 6, 8, ... continues, what is the 20th term?

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Multiple Choice

If the sequence 2, 4, 6, 8, ... continues, what is the 20th term?

Explanation:
This is an arithmetic sequence with a constant difference of 2 between terms. The formula for the nth term is a_n = a1 + (n−1)d. Here a1 = 2 and d = 2, so the 20th term is a_20 = 2 + (20−1)×2 = 2 + 38 = 40. So the 20th term is 40. For context, the 19th term would be 38 and the 21st term would be 42, illustrating the steady step of +2.

This is an arithmetic sequence with a constant difference of 2 between terms. The formula for the nth term is a_n = a1 + (n−1)d. Here a1 = 2 and d = 2, so the 20th term is a_20 = 2 + (20−1)×2 = 2 + 38 = 40. So the 20th term is 40. For context, the 19th term would be 38 and the 21st term would be 42, illustrating the steady step of +2.

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