algebra : ratios

May 29th, 2015
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Two or more ratios maybe compared by reducing their equivalent fractions to a common denominator. thus suppose a : b and x

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REVIEW QUESTIONS IN ALGEBRA1. The product of (xy 1) and (xy + 8) is a. x2y2 8 b. x2y2 9xy 8 c. x2y2 + 7xy 8d. x2y2 7xy 8 2. The expression (x 3)3 is identical to a. x3 27 b. (x 3)(x2 3x + 9) c. (x + 3)(x2 6x + 9)d. x3 9x2 + 27x 27 3. The product of (5x + 7y) and (5x 7y) is a. 25x2 70xy 49y2b. 25x2 + 49y2 c. 25x2 + 70xy 49y2d. 25x2 49y24. a. b. c. d. 5. The greatest common monomial factor in 3x2 6x is a. 3 b. 3xc. 6x2d. x 2 6. The factored form of y2(2x 3) 4(2x 3) is a. y2 4(2x 3)2 b. (2x 3)(y2 4) c. (y + 2)(y 2)(2x 3)d. (y2 4) (2x 3)27. The factored form of 1 0.49x2 is a. (1 + 0.7x)(1 0.7x)b. (1 + 0.07x)(1 0.07x) c. (1 + 0.49x)(1 x)d. (! + 0.49x)(1 + x)8. The factored form of 4a2 20ab + 9b2 is a. (2a b)(2a 9b) b. (2a b)(2a + 9b) c. (2a + b)(2a 9b)d. (2a + b)(2a + 9b)9. The expression 81x2 90xy + 25y2 is an example of a a. sum of 2 squaresb. difference between 2 perfect squares c. sum of 2 cubesd. perfect square trinomial10.All numbers below are composite except a. 42 b. 53c. 105d. 15411.The length of a rectangl

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