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The perimeter of a rectangle is 28 cm. Which of the following express the area of the rectangle in terms of the width x?

Sagot :

Mathewscholar35idn

Answer:

14x−x

2

Step-by-step explanation:

Perimeter is 2x + 2y = 28 (y is the length BTW)

To find y, transfer equations

28-2x=2y

Divide both sides by 2

14-x = y

Now you have your length in terms of x

Multiplt length and width

x(14-x)

14x - x {}^{2}14x−x

2

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