Here are the first four terms of a sequence.
4 11 18 25
Write down an expression for the nth term.
Answers
Answered by
1
Answer:
X+7= nth term
4+7=11
11+7=18
18+7=25
25+7=32.......
Answered by
0
Tn = a + (n-1) d
a = first term = 4
d = common difference = 11-4 = 7
So
Tn = 4 + (n-1) 7
Tn = 4+ 7n -7
Tn = 7n-3
a = first term = 4
d = common difference = 11-4 = 7
So
Tn = 4 + (n-1) 7
Tn = 4+ 7n -7
Tn = 7n-3
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