A recipe uses 1/4 teaspoons of baking soda for every ½ cup of flour. What is the unit rate in cups per teaspoon?
1 answer:
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and is all you can simplify from it.
so... all we did, was rationaliize it, namely, "getting rid of the pesky radical at the bottom", we do so by simply multiplying it by something that will raise the radicand, to the same degree as the root, thus the radicand comes out.