Which of the following correctly uses the explicit formula, An=14+(n−1)⋅12

, to find the 9th term of the described arithmetic sequence?(1 point)
Responses

434
4 Start Fraction 3 over 4 End Fraction

814
8 Start Fraction 1 over 4 End Fraction

414
4 Start Fraction 1 over 4 End Fraction

834

1 answer

To find the 9th term of the arithmetic sequence given the explicit formula \( A_n = 14 + (n - 1) \cdot 12 \), we need to substitute \( n = 9 \) into the formula.

\[ A_9 = 14 + (9 - 1) \cdot 12 \]

Now, calculate:

  1. Compute \( (9 - 1) \) which equals \( 8 \).
  2. Multiply \( 8 \) by \( 12 \):

\[ 8 \cdot 12 = 96 \]

  1. Now add \( 14 \) to \( 96 \):

\[ A_9 = 14 + 96 = 110 \]

Thus, the 9th term of the arithmetic sequence is \( 110 \).

None of the provided options include \( 110 \). It's possible there may be an error in the question or the language of your responses. If you need assistance with something specific related to the answer choices you provided, please let me know!