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# (Originais Teachy 2023) - Question Medium of Math

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Logarithms: Introduction
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In a field survey, a group of scientists observed that the population of a certain species of bacteria doubled every 3 hours. After 15 hours, the initial population of bacteria was 500. Based on this context, what is the value of the logarithm base 2 of the ratio between the population of bacteria after 15 hours and the initial population?
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Joana intends to renovate the floor of her leisure area, which has an L shape. The upper part of the L shape is a rectangle with a length of 8 meters and a width of 3 meters, and the lower part of the L shape is a square with sides of 5 meters. To calculate the amount of flooring needed for the renovation, Joana needs to know the total area of the leisure area. a) Divide the figure into two geometric shapes: a rectangle and a square. b) Calculate the area of each of the geometric shapes. c) Add the areas of these geometric shapes to obtain the total area of the leisure area.
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