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12 January, 17:39

Which expression represents the total perimeter of her sandwich, and if x = 1.2, what is the approximate length of the crust?

8x2 + 34; 43.6 centimeters

8x2 + 34; 45.52 centimeters

4x2 + 17; 21.8 centimeters

4x2 + 17; 22.76 centimeters

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  1. 12 January, 18:06
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    Substituting the value of X in each of the equations. The best answer would be the equation satisfying both of the sides.

    Therefore,

    Substituting the values in the second equation gives the best answer.

    8 (1.2) ^2 + 34 = 45.52 centimeters
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