4.7 x 10^-3__2^2
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Write each expression in exponential form and find its value. 3 x 3 x 3

What is the slope of a line that is perpendicular to y = 3x + 1

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?