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CM2 Quiz No. 1

Quiz by Akyssia Myel Airi

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15 questions
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  • Q1

    A(n) _____________ is  a statement that two expressions are equal.

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    30s
  • Q2

    To ___________ an equation means to find all numbers that make the equation a true statement.

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    30s
  • Q3

    The solution set of 2x + 5 = x - 3 is {-8}.

    true
    false
    True or False
    30s
  • Q4

    The equation 5x = 4x is an example of an identity.

    false
    true
    True or False
    30s
  • Q5

    Which one is not a linear equation?

    7x + 8x   = 13x

    5x + 7(x - 1) = -3x

    0.04x - 0.08x = 0.40

    9x - 4x + 3 = 0

    45s
  • Q6

    Suppose that a computer that originally sold for x dollars has been discounted 60%. Which one of the following expressions does not represent its sale price?

    x - 0.60x

    x - 0.60

    0.40x

    4/10 x

    60s
  • Q7

    Suppose two acid solutions are mixed. One is 26% acid and the other is 34% acid. Which one of the following concentrations cannot possibly be the concentration of the mixture?

    24%

    30%

    33%

    31%

    60s
  • Q8

    If a and b are real numbers, then any number of the form a + bi is a(n) _________.

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    30s
  • Q9
    60s
  • Q10

    Proposed solutions for which any denominator equals ___________ are excluded from the solution set of a rational equation.

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    30s
  • Q11

    A(n) __________ is an equation that has a rational expression for one or more terms.

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    30s
  • Q12

    What is the interval notation of  -2 < x ≤ 6?

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    30s
  • Q13

    What is the interval notation of x ≥ -6?

    (-6, ∞)

    (-∞, -6)

    (-∞, -6]

    [-6, ∞)

    30s
  • Q14

    This graph of solution set is ________.

    Question Image

    |x| = 7

    |x| > 7

    |x| < 7

    |x| ≥ 7

    30s
  • Q15

    This graph of solution set is ________.

    Question Image

    |x| = 7

    |x| > 7

    |x| < 7

    |x| = -7

    30s

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