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FL - 2005-06 - Math - Grade 9

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  • In 1997, the population of the United States was expected to increase by approximately 10.4 million people by the year 2002. What is 10.4 million expressed in scientific notation?

    1.04 x 106
    1.04 x 10-6
    1.04 x 107
    1.04 x 10-7


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  • An architect found a side of a right triangle on a blueprint to be √21 centimeters. Which point is closest to √21 on the number line?

    P
    Q
    R
    S


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  • A laser beam in a science lab is aimed at a mirror. The angle at which the incoming beam hits the mirror is equal to the angle at which the beam is reflected from the mirror. What is the measure of the angle at which the beam is reflected from the mirror?

    30°
    45°
    60°
    90°


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  • The graph of y = 3x + 2 is shown. How would the graph change if the 2 in the equation was replaced with a 5 ?

    The line would remain parallel with a shift down of 3 units.
    The line would remain parallel with a shift down of 2 units.
    The line would remain parallel with a shift up of 3 units.
    The line would remain parallel with a shift up of 2 units.


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  • The circle graph below represents the areas of nine national parks located in Florida in 2001. The largest of these, the Everglades, contained about 1.5 million acres in 2001. Which of these is closest to the number of acres that was contained in the other eight designated parks in 2001?

    300,000 acres
    700,000 acres
    1,200,000 acres
    2,700,000 acres


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  • The menu at a restaurant offers the following choices. How many different combinations are possible when selecting 1 sandwich, 1 cheese, and 1 salad?

    13
    26
    72
    112


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  • The drawing shows the floor plan for an office space. Three of the corners of the floor plan are right angles. An electrician plans to run wiring along the perimeter of the space from point A to point C, passing through point B. What is the minimum number of feet of wire that the electrician will need?

    80 ft
    86 ft
    92 ft
    104 ft


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  • The bottom of a 13-foot-long ladder is placed 5 feet away from a wall so that the ladder rests against the top as shown. Assuming the wall is perpendicular to the ground, what is the height of the wall?

    8 feet
    12 feet
    14 feet
    18 feet


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  • Fred, Thomas, and Zachary worked at the ice cream store in the mall. Last week, Fred earned more money than Thomas, but less than Zachary. The graph shows the money earned by Zachary and Thomas. Which area of the graph represents Fred’s possible weekly pay?

    P
    R
    S
    T


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