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Suppose the quadratic equation ax² + x-c = 0 has two real roots r1 and r2. If r1+r2 = r1×r2 = -1/2, then c is equal to ____________
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If 90, 146, and 230 are each divided by the same number, the remainder is 6. What is the greatest possible value of the divisor?
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If you buy a gold ring for 498 Birr and sell it for 750 Birr, What is the markup percent with respect to cost?
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What is the percent markup on selling price if the markup on cost is 25%?
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What is the solution set of the system of linear equations x+ y = 7 and 2x +3y = -3 ?
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If A and B are matrices of order 3 with det(A) = 3 and det(B) = 5 then what is the value of det(2AB) ?
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What is the equation of the line passing through (-2, 0) and (0, 5)?
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What is the y-intercept of the line whose general equation is 3x - 6y - 4 = 0?
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What is the equation of the straight line with slope -3/2 and which passes through the point (-3 ,2)?
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What is the angle of inclination of the line containing the points A( 0, 5) and B (4, 5)?
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What is the image of the point A( 3,4) when it is rotated through Θ = π about (6, 5)?
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The solution set of the quadratic equation x² + 6x +8 = 0 is__________.
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When 2x³ - 5x² + 4x-8 is divided by ax² + bx +c the quotient is x-2 and the remainder is bx -a. Then what are the value of a, b and c respectively?
