Answer:
11
Fifth term
Step-by-step explanation:
The third term is:
20 − (3)² = 11
If the term is negative:
20 − n² < 0
n² > 20
n > √20
n > 4.47
The first term to have a negative value is the fifth term.
The third term is 11.
The fifth term should be in the sequence is the first to have a negative value.
Given that,
Based on the above information, the calculation is as follows:
The third term is
[tex]= 20 - (3)^2[/tex]
= 20 - 9
= 11
Now
If the term is negative:
So,
n > 4.47
Therefore, we can conclude that
The third term is 11.
The fifth term should be in the sequence is the first to have a negative value.
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