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Mathematics Flashcards

7 cards from real CHSPE 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 flashcards as text

  1. Which expression represents the area of a circle with diameter d?

    Answer: πd²/4

    Radius = d/2, so Area = π(d/2)² = πd²/4.

  2. What is the value of x if 5(x − 2) = 3(x + 4)?

    Answer: x = 11

    5x − 10 = 3x + 12 → 2x = 22 → x = 11.

  3. A cylinder has a radius of 5 cm and a height of 10 cm. What is its volume? (Use π ≈ 3.14)

    Answer: 785 cm³

    V = πr²h = 3.14 × 25 × 10 = 785 cm³.

  4. On a number line, which value is closest to √50?

    Answer: 7

    √49 = 7 and √64 = 8, so √50 is just slightly above 7.

  5. A recipe calls for 2½ cups of flour to make 24 cookies. How many cups are needed for 60 cookies?

    Answer: 6¼ cups

    60 ÷ 24 = 2.5, so 2.5 × 2.5 = 6.25 = 6¼ cups.

  6. What is the value of −3² − (−4)²?

    Answer: −25

    −3² = −9 and −(−4)² = −16; −9 + (−16) = −25.

  7. The equation y = −2x + 6 crosses the y-axis at which point?

    Answer: (0, 6)

    The y-intercept occurs at x = 0; y = −2(0) + 6 = 6, so the point is (0, 6).