13) Two ellipses have the same center and are similar. Similar ellipses are ellipses that have the same a:b ratio. Both ellipses have horizontal major axes. If the area inside the larger ellipse and outside the smaller ellipse is 71.808 square units, find the a-value of the smaller ellipse if the larger ellipse has an a-value equal to 7 and a b-value equal to 4. The area of an ellipse is A = n(a)(b).
Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.
Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
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