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oksian1 [2.3K]
4 years ago
7

Help please thank you

Mathematics
1 answer:
MA_775_DIABLO [31]4 years ago
5 0

Answer:

an = 12 + 6(n-1)

Step-by-step explanation:

The formula for an arithmetic sequence is

an = a1+d(n-1)

where a1 is the  first term and d is the common difference

a1 =12

To find d take the second term and subtract the first term

18-12 = 6

Check with the third term and the second term

24 -18 = 6

We add 6 each time

d= 6

an = 12 + 6(n-1)

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