## anonymous one year ago what is the simple formula for the nth term of the following arithmetic sequence 12,16,20,24,28,...

1. anonymous

$a_1+(n-1)\times d$ you need only $$a_1$$ and $$d$$ the$$n$$ stays in the formula

2. anonymous

is a[1]=12 and d=4

3. anonymous

yes

4. anonymous

12+(n-1)*4 and it gave me 4(n+2)

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