Use the explicit formula An=4.8+(n−1)2
𝐴
𝑛
=
4.8
+
(
𝑛
−
1
)
2
to find the 11th term in the arithmetic sequence.

Question

Use the explicit formula An=4.8+(n−1)2
𝐴
𝑛
=
4.8
+
(
𝑛
−
1
)
2
 to find the 11th term in the arithmetic sequence.

GPT-5 mini · Answer

A11 = 4.8 + (11 − 1)·2 = 4.8 + 10·2 = 4.8 + 20 = 24.8.

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