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18-05-2020
Mathematics

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Which function models the area of a rectangle with side lengths of 2x – 4 units and x + 1 units? What is the area when x = 3?

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wegnerkolmp2741o wegnerkolmp2741o

18-05-2020

Answer:

8

Step-by-step explanation:

Length = 2x-4

Width = x+1

Let x=3 and find the length and width

Length = 2*3-4 = 6-4 =2

Width = x+1= 3+1 =4

The area is given by

A = l*w = 2*4 = 8

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