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The half-life of a certain substance is 5.9 days. How many days will it take for 30g of the substance to decay to 12g?
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The length of a shadow of the building is 36m. the length of the pole, which is perpendicular to the ground, is 1.9m. the length of the pole's shadow is 1.52m. what is the height of the building?
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Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0
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Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.
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The half-life of a certain substance is 5.9 days. How many days will it take for 30g of the substanc...
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