Math Problem Statement

Find the missing term in each of the following sequence

Solution

Let's analyze and solve the missing terms in each sequence:

  1. Sequence: 2, 5, 10, 17, ___, 37, ___, 65, ___, ___, 145

    • Pattern: n2+1n^2 + 1 where nn starts from 1 and increases by 1.
      • 12+1=21^2 + 1 = 2
      • 22+1=52^2 + 1 = 5
      • 32+1=103^2 + 1 = 10
      • 42+1=174^2 + 1 = 17
      • 52+1=265^2 + 1 = 26
      • 62+1=376^2 + 1 = 37
      • 72+1=507^2 + 1 = 50
      • 82+1=658^2 + 1 = 65
      • 92+1=829^2 + 1 = 82
      • 102+1=10110^2 + 1 = 101
      • 112+1=12211^2 + 1 = 122
      • 122+1=14512^2 + 1 = 145
    • Missing Terms: 26, 50, 82, 101, 122
  2. Sequence: ___, 8, ___, 64, ___, 216, 343

    • Pattern: These are cubes of consecutive integers.
      • 13=11^3 = 1
      • 23=82^3 = 8
      • 33=273^3 = 27
      • 43=644^3 = 64
      • 53=1255^3 = 125
      • 63=2166^3 = 216
      • 73=3437^3 = 343
    • Missing Terms: 1, 27, 125
  3. Sequence: 1, 1, 3, 5, 9, 17, 31, ___

    • Pattern: Each term is the sum of the two previous terms.
      • 1+1=21 + 1 = 2
      • 1+2=31 + 2 = 3
      • 2+3=52 + 3 = 5
      • 3+5=83 + 5 = 8
      • 5+8=135 + 8 = 13
      • 8+13=218 + 13 = 21
      • 13+21=3413 + 21 = 34
    • Missing Term: 57
  4. Sequence: 30, 22, 14, ___, -10, -18, ___

    • Pattern: Decreasing by 8.
      • 308=2230 - 8 = 22
      • 228=1422 - 8 = 14
      • 148=614 - 8 = 6
      • 108=18-10 - 8 = -18
    • Missing Terms: 6, -26
  5. Sequence: 3, 7, 15, 31, 63, ___

    • Pattern: 2n+12n + 1
      • 3×2+1=73 \times 2 + 1 = 7
      • 7×2+1=157 \times 2 + 1 = 15
      • 15×2+1=3115 \times 2 + 1 = 31
      • 31×2+1=6331 \times 2 + 1 = 63
      • 63×2+1=12763 \times 2 + 1 = 127
    • Missing Term: 127
  6. Sequence: 8, 5, 4, 9, 1, 7, 3, 11, ___

    • Pattern: Alternating prime numbers starting from 2 and 3.
      • Next is 6.
    • Missing Term: 6
  7. Sequence: 1, 10, 11, 21, 31, 41, 1401, 16, 512

    • Pattern: The pattern isn’t clear, but it could involve alternating primes, squares, or other operations.
    • Answer requires further investigation.
  8. Sequence: F, T, F, T, T, ___, F, F, F, ___, S

    • Pattern: Alternating True (T) and False (F), and then a sequence "F, F, F".
      • Missing Term: T, S
  9. Sequence: J, F, M, A, M, ___, J, A, ___

    • Pattern: First letters of months.
    • Missing Terms: J (June), S (September)
  10. Sequence: O, T, T, F, F, S, S, ___

    • Pattern: First letters of number words.
      • One, Two, Three, Four, Five, Six, Seven.
    • Missing Term: E (Eight)

Would you like further details or explanations on any of these sequences?


Relative Questions:

  1. How can sequences with alternating patterns be identified?
  2. What methods can be used to find missing terms in arithmetic sequences?
  3. How can one determine if a sequence follows a geometric pattern?
  4. What are some common sequences in mathematics and their patterns?
  5. How does the Fibonacci sequence differ from other number sequences?

Tip: When solving sequence problems, identify if the sequence follows a specific mathematical pattern, such as arithmetic, geometric, or a combination of operations.

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Math Problem Analysis

Mathematical Concepts

Sequences
Patterns

Formulas

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Theorems

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Suitable Grade Level

High School