A group of scientist study the effect of chemical on Various strains of bacteria. Strain A started with 12000 cells and decreases at a constant rate of 4000 cells per hour after the chemical was applied. strain B started with 6000 cells and decreased at a constant rate of 3000 cells per hour after the chemical was applied. when will just strains have the same number of cells? explain​

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the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing im pretty sure that is the right answer

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a rotation about point l

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quizlet

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