1.   Express 0.0000421 in scientific notation.
    A. 4.21 × 10-6 B. 4.21 × 10-9
    C. 4.21 × 10-4 D. 4.21 × 10-5
    Hint

  2.   Determine the slope of the line graphed below.
   
    A. 0 B.
    C. D.
    Hint

  3.   Select the segment that has been bisected.
    A. B.
    C. D.
    Hint

  4.   Use the scatter plot to predict the mileage of an engine with 250 horsepower.
   
    A. 10 B. 20
    C. 12 D. 25
    Hint

  5.   Evaluate (3.2 × 10-5)(5.4 × 109). Express the result in scientific notation.
    A. 0.1728 × 106 B. 1.728 × 105
    C. 17.28 × 104 D. 1.728 × 103
    Hint

  6.   The graph of y = -4x2 - 1 is _____.
    A. a circle B. None of these is correct.
    C. a straight line D. a parabola
    Hint

  7.   The vertices of are A(2, -1), B(0, -3), and C(4, -2). Find the vertices of the triangle after a translation 2 units right and 3 units down.
    A. A'(0, 2), B'(-2, 0), C'(2, 1)
    B. A'(4, 2), B'(2, 0), C'(6, 1)
    C. A'(4, -4), B'(2, -6), C'(6, -5)
    D. A'(-1, 1), B'(-3, -1), C'(1, 0)
    Hint

  8.   Simplify .
    A. B.
    C. D.
    Hint

  9.   Find the situation that involves a decreasing linear relationship and has direct variation.
    A. The temperature that begins at 0°F at 6:00 a.m. rises 3°F every hour for 6 hours.
    B. A bucket that begins at ground level and is lowered into a well at a rate of 1 foot per second.
    C. A submarine that begins at the bottom of the ocean and is raised to the surface of the water at 15 meters per second.
    D. An airplane that begins at 20,000 feet and descends for a landing on the ground at the airport.
    Hint

  10.   How many diagonals does a 25-sided polygon have?
    A. 275 B. 550
    C. 25 D. 300
    Hint

  11.   What is the reciprocal of –20? Evaluate it in decimal form.
    A. –0.50 B. –0.02
    C. –0.05 D. –0.20
    Hint

  12.   What is true of the second differences for the equation x2 – 6x + 12?
    A. they decrease by 1
    B. they are constant
    C. they increase by 12
    D. they increase by 1
    Hint

  13.   Consider the following conjecture. If an even number is written 2k, where k is a whole number, then 2k + 1 must be an odd number. What can be your next course of action in dealing with this conjecture?
    A. test every possible case to prove the conjecture
    B. find a counterexample to disprove the conjecture
    C. develop an argument to prove the conjecture
    D. all answers are correct
    Hint

  14.   How could you use the graph of h = 20t – 6t2 to estimate the solution(s) of 20t – 6t2 = 7, where h stands for height and t stands for time?
   
    A. Draw a vertical line at t = 7 and find where it intersects the curve.
    B. Draw a horizontal line at h = 20 and find where it intersects the curve.
    C. Draw a horizontal line at h = 7 and find where it intersects the curve.
    D. Draw a vertical line at t = 20 and find where it intersects the curve.
    Hint

  15.   A ball is launched straight up from ground level modeling the equation h = 52t – 10t2, where h stands for height in meters and t stands for time. On its way up, it reached a particular height at 1 second. On its way down, it again reached the same height. At approximately what time did it reach that height the second time?
    A. 2.0 seconds B. 5.2 seconds
    C. 3.5 seconds D. 4.2 seconds
    Hint

  16.   Toby needs to create a rectangular pen for his dog. He decides that the area of the pen will be 100 square feet with its length 2 feet longer than its width. As you find the width of the pen, which solution can be thrown away since the width cannot be negative?
    A. –11.05 B. –9.05
    C. –12.32 D. –8.32
    Hint

  17.   What angle of rotation does the figure below have?
   
    A. 45° B. 40°
    C. 35° D. 30°
    Hint

  18.   A figure has rotation symmetry of 8°. How many identical parts must there be?
    A. 40 B. 70
    C. 45 D. 272
    Hint

  19.   Find the angle of rotation that is the same as 70°.
    A. –290° B. –170°
    C. 170° D. –70°
    Hint

  20.   Translate the figure using the given vector.
   
    A. B.
    C. D.
    Hint



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