What is the 5th term in the arithmetic sequence 2, 5, 8, ...?

Practice Questions

Q1
What is the 5th term in the arithmetic sequence 2, 5, 8, ...?
  1. 14
  2. 15
  3. 16
  4. 17

Questions & Step-by-Step Solutions

What is the 5th term in the arithmetic sequence 2, 5, 8, ...?
Correct Answer: 14
  • Step 1: Identify the first term of the sequence. The first term is 2.
  • Step 2: Identify the second term of the sequence. The second term is 5.
  • Step 3: Calculate the common difference by subtracting the first term from the second term: 5 - 2 = 3.
  • Step 4: Identify the position of the term we want to find. We want the 5th term.
  • Step 5: Use the formula for the nth term of an arithmetic sequence: nth term = first term + (n - 1) * common difference.
  • Step 6: Plug in the values: 5th term = 2 + (5 - 1) * 3.
  • Step 7: Simplify the equation: 5th term = 2 + 4 * 3.
  • Step 8: Calculate 4 * 3 = 12.
  • Step 9: Add 2 + 12 = 14.
  • Step 10: The 5th term in the sequence is 14.
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