jwunder5859
18.05.2021 •
Mathematics
Find the nth term: 18, 30 ,42, 54
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Ответ:
Step-by-step explanation:
This is an arithmetic sequence, the kind where you start with a number (first term), then add a specific number (the common difference) to get the next term, and on and on like that.
1st term: 18
2nd term: 18 + 12 = 30
3rd term: 30 +12 = 42
4th term: 42 + 12 = 54, etc.
In this formula, n is the number of a term, and d is the common difference.
In this question,
, so
Ответ:
j = 2
Step-by-step explanation:
Combine like terms
6j-11j-11j+10=-13
-16j+19=-13
Subtract 19 from both sides of the equation
-16j+19=-13
-16+19-19=-13-19
Simplify
-16j=-32
Divide both sides of the equation by the same term
Simplify again
Which gives you j=2