Asked by ugochukwu

the 8th of a linear sequence is 18 and the 12 term is 26 find the first term of the common difference and 20th term
Answered by oobleck
since the two given terms are four apart, d = (26-18)/4 = 2
so now you know that
a = 18 - 7*2 = 4
and a_20 = a+19d = _____
Answered by Binta
55 durbah ground
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