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# Rational Functions

A rational function can have a variable like "x" in the numerator AND the denominator. When this happens, there are some special rules and properties to consider.

# Approximation of Square Roots

Which of the following is the closest to $$\sqrt{7}?$$

Round $$\sqrt{137}$$ to the nearest integer.

Given $$a=2\sqrt{8}, b=2\sqrt{10}, c=\sqrt{35}, d=6,$$ and $$e=2\sqrt{9},$$ which of the following is correct?

Which of the following is the closest to $$8.3?$$

Which of the following is closest to $$2\sqrt{3}?$$

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