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What percentage of the square's area is colored blue?
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15 can be written as the difference between two positive perfect squares: 15=16−1=42−12. Which of the following numbers cannot be written as the difference of two positive perfect squares?
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A factory manufactures wooden squares whose side length should be one meter. However, the side length of the squares is not always 1 m but varies uniformly between 1 m and 1.1 m. Note that the height and the breadth of each square piece remain equal to each other.
Two inspectors, Alice and Bob, want to calculate the average area of a square.
Who is correct?
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An accelerometer is made using tubular sections, as shown below. The accelerometer is placed in a rocket that travels in the x direction, and the liquid levels are steady at 20 cm and 10 cm.
Find the magnitude of the rocket’s acceleration (in m/s2). Submit your answer to 3 decimal places.
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A ladder is placed on a stairway (as shown). What is the length of the shorter leg?
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