4. A rectangular light-switch plate is made according to the following dimensions. The length is 7 inches, and the width

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$1.00 4. A rectangular light-switch plate is made according to the following dimensions. The length is 7 inches, and the width

From Mathematics: Algebra
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Due on Dec. 05, 2008
Asked on Dec 02, 2008 at 7:06:11PM

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4. A rectangular light-switch plate is made according to the following dimensions. The length is 7 inches, and the width is 5.5 inches; a rectangular hole measuring 1.2 inches by 0.3 inches is left in the center. (See diagram below) (a) How many square inches in area is the light-switch plate (the shaded region)? (b) If the cost to construct the plate is $4.27 per square inch, what is the construction cost?

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Posted on Dec 02, 2008 at 7:24:39PM

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Preview: ... is left in the center. (a) How many square inches in area is the light-switch plate (the shaded region)? Overal, ...

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Posted on Dec 02, 2008 at 7:34:12PM

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Preview: ... = 7*5.5 - 1.2*0.3 = ...

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Posted on Dec 02, 2008 at 11:38:49PM

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Preview: ... ;before accounting for the rectangular hole: 1.2 x .3 ...

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