In figure is shown a right circular cone of height 30 cm. A small cone is cut off from the top by a plane parallel to the base.
If the volume of the small cone is 1/27 of the volume of given cone, find at what height above the base is the section made.
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Rational expressions are those that have fractional terms. We state restrictions because it may cause the equation to be undefined in some values of x. The most common restriction for rational expressions is N/0. This means any number divided by zero is undefined.
<h3>What is rational expressions and examples?</h3>A rational expression is nothing more than a fraction in which the numerator and/or the denominator are polynomials. Here are some examples of rational expressions.
To find the restrictions on a rational function, find the values of the variable that make the denominator equal 0.
Learn more about rational expressions here: