Solve each equation in Exercises 47–64 by completing the square.
1. Equations & Inequalities
The Square Root Property
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Solve each equation using the quadratic formula. -4x2 = -12x + 11
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Solve each equation for the specified variable. (Assume no denominators are 0.) F = kMv2/r , for v
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Use Choices A–D to answer each question. A. 3x2 - 17x - 6 = 0 B. (2x + 5)2 = 7 C. x2 + x = 12 D. (3x - 1)(x - 7) = 0 Only one of the equations is set up so that the values of a, b, and c can be determined immediately. Which one is it? Solve it.
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Solve each equation using the zero-factor property. x2 - 5x + 6 = 0
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Radius of a Can A can of Blue Runner Red Kidney Beans has surface area 371 cm2. Its height is 12 cm. What is the radius of the circular top? Round to the nearest hundredth.
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Solve each equation for the specified variable. (Assume no denominators are 0.) See Example 8. , for t
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Solve each equation using the zero-factor property. x2 - 64 = 0
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In Exercises 109–114, find the x-intercept(s) of the graph of each equation. Use the x-intercepts to match the equation with its graph. The graphs are shown in [- 10, 10, 1] by [- 10, 10, 1] viewing rectangles and labeled (a) through (f). y = x2 - 2x + 2
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Length of a Walkway A nature conservancy group decides to construct a raised wooden walkway through a wetland area. To enclose the most interesting part of the wetlands, the walkway will have the shape of a right triangle with one leg 700 yd longer than the other and the hypotenuse 100 yd longer than the longer leg. Find the total length of the walkway.
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Solve each equation using the zero-factor property. -6x2 + 7x = -10
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Solve each equation using the zero-factor property. x2 + 2x - 8 = 0
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Use the following facts. If x represents an integer, then x+1 represents the next consecutive integer. If x represents an even integer, then x+2 represents the next consecutive even integer. If x represents an odd integer, then x+2 represents the next consecutive odd integer. Find two consecutive odd integers whose product is 63.
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Solve each equation using the quadratic formula. x2 = 2x - 5
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Solve each equation in Exercises 83–108 by the method of your choice. 3/(x - 3) + 5/(x - 4) = (x2 - 20)/(x2 - 7x + 12)