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Mathematics Knowledge Flashcards

7 cards from real AFQT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Mathematics Knowledge flashcards as text

  1. What is the least common multiple (LCM) of 6 and 8?

    Answer: 24

    The LCM of 6 and 8 is 24, the smallest number divisible by both.

  2. A circle has a radius of 7. What is its circumference? (Use π ≈ 3.14)

    Answer: 43.96

    Circumference = 2πr = 2 × 3.14 × 7 = 43.96.

  3. Solve for x: x/4 + 3 = 7

    Answer: 16

    Subtracting 3: x/4 = 4, then multiplying by 4: x = 16.

  4. What is the slope of a line passing through (2, 3) and (6, 11)?

    Answer: 2

    Slope = (11 - 3) / (6 - 2) = 8 / 4 = 2.

  5. Which expression is equivalent to 5(2x - 3)?

    Answer: 10x - 15

    Distributing: 5 × 2x = 10x and 5 × (-3) = -15, giving 10x - 15.

  6. What is the square root of 144?

    Answer: 12

    12 × 12 = 144, so √144 = 12.

  7. If 2/3 of a number is 18, what is the number?

    Answer: 27

    If (2/3)n = 18, then n = 18 × (3/2) = 27.