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Algebraic Expressions

Algebraic Expressions

Formulas Exercises

Example 1

The formula for the area of a circle is A = πr2. What do the letters A and r represent?

Example 2

The formula for the area of a circle is  A = πr2. Which is the dependent and which is the independent variable?

Example 3

The formula for the area of a circle is A = πr2. Let H be the area of half a circle. Write a formula describing H in terms of r.

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