Answer: Option 'A' is correct.
Explanation:
Since we have given that
The explicit rule for an arithmetic sequence is
[tex]a_n=8.7-1.4(n-1)[/tex]
We need to find the value of 47th term,
We will put the value of n = 47
So, we get,
[tex]a_{47}=8.7-1.4(47-1)\\\\a_{47}=8.7-1.4\times 46\\\\a_{47}=8.7-64.4\\\\a_{47}=-55.7[/tex]
Hence, Option 'A' is correct.
