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Math (Grades 8-12) Flashcards

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

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  1. Which of the following is the quadratic formula used to solve ax squared + bx + c = 0?

    Answer: x = (-b plus or minus square root of (b squared - 4ac)) all over 2a

    The quadratic formula is x = (-b plus or minus sqrt(b^2 - 4ac)) divided by 2a. The entire numerator is divided by 2a.

  2. A right triangle has one leg of 8 and a hypotenuse of 17. What is the length of the other leg?

    Answer: 15

    a^2 + 8^2 = 17^2, so a^2 = 289 - 64 = 225, meaning a = 15. This is the 8-15-17 Pythagorean triple.

  3. What is the y-intercept of the equation 4x - 2y = 8?

    Answer: y = -4

    Set x=0: 4(0) - 2y = 8, so -2y = 8, meaning y = -4. The y-intercept is -4.

  4. The volume of a cylinder is V = pi times r squared times h. If r = 3 and h = 5, what is the volume?

    Answer: 45 pi

    V = pi times (3 squared) times 5 = pi times 9 times 5 = 45 pi.

  5. Which expression is equivalent to (2x cubed) to the 4th power?

    Answer: 16x to the 12th

    (2x^3)^4 = 2^4 times (x^3)^4 = 16 times x^(3 times 4) = 16x^12.

  6. If a data set is {4, 7, 7, 9, 13}, what is the median?

    Answer: 7

    The data set is already ordered. With 5 values, the median is the 3rd value: 7.