If the nth term of the sequence -1 , 4, 9, 14..... Is 129. Then find the value of n.
2 answers:
Answer:
27
Step-by-step explanation:
129-(-1) = 130
130/5 = 26
26+1 = 27
Answer:
n = 27
Step-by-step explanation:
This is Arithmetic sequence
a = -1
Common difference = 4 - (-1) = 4 +1 = 5
an = a + (n-1)d
129 = -1 + (n-1)*5
129 + 1 = (n-1)*5
130 = (n-1)*5
130/5 = n - 1
26 = n - 1
n = 26 + 1
n =27
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Answer:
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Step-by-step explanation:
4x+2=11
x=9/4...(1)
now,
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Answer:
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