Part \( B \) Which of the following expressions can be used to lind the nith term in the patterm? A. \( 3(n-1) \) B. \( 3+5(n-1) \) C. \( 3+(n-1)+5 \) D. \( 3(n-1)+5 \)
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To find the n-th term of a sequence, we often rely on the formula that encapsulates the pattern governing the sequence. In this case, we can observe that the first term is 3, and it appears that there's a common difference, suggesting we might have an arithmetic sequence. Formulating expressions like \(3 + 5(n-1)\) can be particularly useful when working with sequences, as it captures both the initial term and the accumulated difference. When approaching these options, keep an eye out for the structure of arithmetic sequences. The expression typically takes the form of the first term plus the common difference multiplied by \((n-1)\). Therefore, while methods may vary slightly, ensuring proper sequencing and maintaining systematic order can lead to the correct expression for the n-th term!