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A quality inspector at Charlie's Calculator Factory examined 150 calculators and found that 8 are defective. What is the best prediction of the number of defective calculators in a delivery of 500 calculators?
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Polygon hh is a scaled copy of polygon gg using a scale factor of 1/4. polygon h's area is what fraction of polygon g's area?
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What is the rate for one gallon of gasoline
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Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota
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