which term of the Arethmatic progesion 2.9,3.2,3.5,3.8... is 8?
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a = 2.9
d = 3.2 - 2.9 = 0.3
a(n) = 8
a + (n - 1)d = 8
2.9 + (n - 1)(0.3) = 8
n - 1 = (5.1) ÷ 0.3
n - 1 = 17
n = 18
Hence, 8 is the 18th term of the given AP.
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