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FL - 2005-06 - Math - Grade 10

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  • A dragonfly specimen has been photographed next to a penny to show the difference in their sizes. The diameter of the penny’s image in the photograph is 0.25 inch, and the length of the dragonfly’s body in the photograph is 1.5 inches. If the actual diameter of a penny is 0.75 inch, what is the actual length of the dragonfly’s body?

    3.00 inches
    4.50 inches
    6.75 inches
    8.00 inches


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  • Triangle ABC and triangle DEF are similar. Which of the following statements about the similar triangles is true?


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  • The graph shows the estimated number of computers in Russia from 1991 to 1996. If the rate of increase in the number of computers continues, which of the following gives the best estimate of the number of computers in Russia in the year 2000 ?

    3 to 5 million
    5 to 6.5 million
    6.5 to 7.5 million
    over 7.5 million


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  • A scientist is comparing the weights of the four molecules listed in the table shown. Which of these molecules is the heaviest?

    salt
    pure water
    hydrochloric acid
    potassium hydroxide


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  • If -5 is multiplied by a number greater than 1, which of the following describes the result?

    a number between -5 and 5
    a number greater than 5
    a number less than -5
    a number greater than -5


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  • It took Myron 90 minutes, at an average rate of 50 miles per hour, to drive home from a business trip. Which of these graphs best represents Myron’s drive home?


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  • The two spinners below are used for a math game. Each arrow has an equal chance of landing on any one number on its spinner. If both arrows land on even numbers, one point is given. Which of these fractions expresses the probability of getting two even numbers?


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  • David and Terri drove a small motorboat down a river with the current. The rate the boat traveled in still water was r miles per hour and the current’s average speed was c miles per hour. It took them 1.5 hours to travel 4 miles downstream. Which of the following equations can be used to represent this information?

    1.5 = (r + c)4

    1.5 = (r – c)4

    4 = (r + c)1.5

    4 = (r – c)1.5


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  • A developer is looking at the drawings of two proportional parcels of land shown. One of the dimensions of parcel B is not readable. How many square feet are in parcel B?

    70,000 square feet
    87,500 square feet
    157,500 square feet
    227,500 square feet


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  • A science lab needs a right circular cylindrical container that holds exactly 15 gallons of liquid and is 24 inches tall. A reference manual states that 231 cubic inches is equivalent to 1 gallon. What is the approximate radius, in inches, of the container?

    1.92 inches
    6.78 inches
    22.99 inches
    45.98 inches


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©2006 gabe lerner (gabe)