A refinery mixes high-octane and low-octane fuels to produce regular and premium gasolines. The profits per fallon on the two ga
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The area of the composite shape is
The shape is made up of four semi-circular regions. (see image attached to the solution). The area can be computed as follows:
where each letter represents the areas of the associated semi-circles.
The area of a semi-circle is given by
For region ,
For region ,
For region ,
For region ,
So, the area of the shape is
Learn more about how to compute the area of composite shapes: brainly.com/question/316492
