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Mathematics
Antwan Barajas
16 March, 01:24
Find the nTH term of this sequence: 15, 12, 9, 6
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Keyla Barrett
16 March, 03:38
0
-3n + 18
Step-by-step explanation:
an = dn + (a - d)
The difference is - 3.
The first term is 15.
an = - 3n + (15 - (-3))
an = - 3n + 15 + 3
an = - 3n + 18
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Giovanni Cummings
16 March, 03:41
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aₙ = 18 - 3n
Step-by-step explanation:
15, 12, 9, 6
Given AP with first term = 15 and common difference = - 3
aₙ=a₁ + (n-1) d = 15 + (n-1) * (-3) = 15 - 3n+3 = 18-3n
aₙ = 18 - 3n
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