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How many ml of 1: 4 solution and how many ml of sterile water are needed to prepare 600 ml of 1: 20 solution ?
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International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?
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The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?
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Find the values of the variables in the kite
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How many ml of 1: 4 solution and how many ml of sterile water are needed to prepare 600 ml of 1: 20...
Mathematics, 24.11.2019 07:31
Mathematics, 24.11.2019 07:31