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The figure above shows a portion of the ...


The figure above shows a portion of the graph of `y=2^(x)`. What is the sum of the areas of the three inscribed rectangles shown?

A

14

B

28

C

128

D

256

Text Solution

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The correct Answer is:
A
Each rectangle has width 1. the heights of these rectangles are `2^(1)=2,2^(2)=4`, and `2^(3)=8`. The sum of these areas is 14.
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