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OR 99-00 Math Grade 8

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  • Find the next number in the sequence.

    4 16 64 256 1,024 ?


    2,048

    3,072

    4,096

    5,120



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  • What is the reflection across the x axis of point A (4,1)?

    x axis of point A (4,1)?

    (0,–1)

    (–4,1)

    (–4,–1)

    (4,–1)



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  • The length of a box was measured to the nearest centimeter and found to be 7 centimeters. Which of these could have been the length if the box was measured with greater precision?


    6.4 centimeters

    6.7 centimeters

    7.62 centimeters

    7.9 centimeters



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  • About 11

    About 12

    About 15

    About 31



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  •  

    Radius

    Chord

    Ray

    Diameter



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  • Jose can buy 3 CDs in a store for $36.00, or 7 CDs by mail for $56.00. The cost for each CD by mail is what fraction of the store price?

    3/7
    9/14
    2/3
    6/4


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  • What are the coordinates of point A?


    (–2,2)

    (–2,–2)

    (2,–2)

    (2,2)



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  • For the past 5 days, the daily number of phone
    calls to the office has been 28, 50, 55, 55 and
    42. What is the MEAN number of phone calls
    the office has received?

    46
    59
    55
    58


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  • Which of the following angles is acute?




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  • The manager of the Pawtucket Red Sox
    baseball club puts up a list of the 21 players on
    the team. The list is arranged by the number of
    hits each player has; the player with the most
    hits is at the top of the list. Assuming no two
    players have the same number of hits, how
    many hits does the 11th player on the list have?

    The mean number of hits

    The median number of hits

    The modal number of hits

    The maximum number of hits



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  • Nancy can walk 1 mile in 20 minutes. The model below shows her walking time for each side of the park by her house. What is the perimeter of the park?

    0.5 mile

    2.5 miles

    5.0 miles

    50 miles



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  • Given y = x + 2 and y = -2x + 5 which point is the solution to both equations?

    which point is the solution to both equations?

    (1,3)

    (–1,3)

    (–1,–3)

    (1,–3)



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  • If a 20-pound bag of fertilizer will cover 1,000
    square feet of lawn, how many pounds of
    fertilizer will it take to cover the lawn shown
    shown?

    10 pounds

    64 pounds

    80 pounds

    96 pounds



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  • Estimate the size of the indicated angle:


    45°

    95°

    135°

    180°



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  • A prime factorization for the number 207 is


    3 x 3 x 23.

    9 x 23

    2 x 103.5

    207 cannot be factored because it is already a prime number.



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  • Use scientific notation to determine the answer:




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  • Which inequality is represented by the graph?




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  • Shown is a graph that shows U.S. car sales between 1979 and 1984.

    What pattern of car sales is shown by this graph?


    Yearly car sales increased and then decreased.

    Yearly car sales stayed almost the same across the 6 years.

    Yearly car sales decreased and then increased.

    Yearly car sales decreased and remained low.



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  • The best of these estimates for the height of a door to a house is


    15 centimeters.

    2 meters.

    0.1 meter.

    2 kilometers.



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  • A jar contains 2 black and 3 white marbles. Al picks 1 marble without looking. What is the probability he picks a black marble?

    1/5
    2/5

    2/3

    5


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  • Here is a triangle.   Is this triangle isosceles, right, obtuse or equilateral?


    Right

    Isosceles

    Obtuse

    Equilateral



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  • The graph below displays the number of times a spinner landed on each color.

    Which spinner would be most likely to give results displayed in the graph?




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  • How much of the square is shaded?


    1/4
    1/2
    3/4
    3/8


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  • The graph shows the height of a Douglas fir tree over time. Which statement best describes the pattern of the tree?


    It grows at the same rate every year.

    It grows fastest during the first part of its life.

    It grows fastest during its middle years.

    It grows fastest during its last years.



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  • Use the table to answer the question.

    Which choice is closest to the MEAN length of these 5 eclipses?


    2 minutes, 10 seconds

    3 minutes, 18 seconds

    3 minutes, 31 seconds

    4 minutes, 51 seconds



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