playspoorly
playspoorly
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The perimeter of a rectangle is 42 centimeters. The length of the rectangle can be represented by (x+4), and its width can be represented by (2x-7). What are the dimensions of this rectangle in centimeters? ------------------------- perimeter of …
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f = 3s f+14 = 2(s+14) f+14 = 2s+28; substitute in f = 3s 3s + 14 = 2s + 28 subtract 2s from both sides s+14=28; s = 14 ============== substitute this in f = 3s to get father's age f = 3(14) = 42
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Nope. Not even a binomial, because 2x - 1/2 x = 1 1/5 x.
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How do you factor 4w^2 - 9? ----------------------------------------------------- product of sum and difference of squares. (2W -3)(2W + 3)
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f = 3s f+14 = 2(s+14) f+14 = 2s+28; substitute in f = 3s 3s + 14 = 2s + 28 subtract 2s from both sides s+14=28; s = 14 ============== substitute this in f = 3s to get father's age f = 3(14) = 42
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The perimeter of a rectangle is 42 centimeters. The length of the rectangle can be represented by (x+4), and its width can be represented by (2x-7). What are the dimensions of this rectangle in centimeters? ------------------------- perimeter of …