26.8k views
2 votes
What is the nth term rule of 7,9,11,13,15

User GusDeCooL
by
6.7k points

2 Answers

5 votes

Answer:


a_(n) = 2n + 5

Explanation:

There is a common difference between consecutive terms, that is

9 - 7 = 11 - 9 = 13 - 11 = 15 - 13 = 2

This indicates the sequence is arithmetic with nth term


a_(n) = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 7 and d = 2 , then


a_(n) = 7 + 2(n - 1) = 7 + 2n - 2 = 2n + 5

User Bokris Itzhak
by
6.8k points
1 vote
The answer is twenty three
User Aonepathan
by
6.9k points
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