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An arithmetic sequence is shown below. You are not given many terms of this sequence, but you do have enough to fill in the missing number. What number goes in the blank? 13, , 55, ... A. 29 B. 34 C. 38
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An arithmetic sequence is shown below. You are not given many terms of this sequence, but you do have enough to fill in the missing number. What number goes in the blank?

13, , 55, ...
A. 29
B. 34
C. 38
D. 21

User Aduric
by
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1 Answer

3 votes
The answer is B 34 use A.M formula middle terms is (1st + 2nd term)/2
User Ashley Lee
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