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A recursive rule for the arithmetic sequence is a1=-3;an=an-1+7 Please help I'll add 50 points Which represents the explicit rule for the same arithmetic sequence? A. an=7n…
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A recursive rule for the arithmetic sequence is a1=-3;an=an-1+7 Please help I'll add 50 points Which represents the explicit rule for the same arithmetic sequence? A. an=7n…
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Jan 19, 2018
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A recursive rule for the arithmetic sequence is a1=-3;an=an-1+7
Please help I'll add 50 points
Which represents the explicit rule for the same arithmetic sequence?
A. an=7n-10
B. an=7n+10
C. an=-3n-3
D.an=-3n-7
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Prafi
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The explicit rule for any arithmetic sequence is:
a(n)=a+d(n-1), a=initial term, d=common difference, n=term number
In this case a=-3 and d=7 so:
a(n)=-3+7(n-1)
a(n)=-3+7n-7
a(n)=7n-10
Histelheim
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Jan 24, 2018
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