lesson12outline - MA 153 Lesson 12 Outline Practice Quiz...

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MA 153 Lesson 12 Outline Practice Quiz Solution (Practice problems for distance learning students)1. Solve for x: ()xx372+= −23720(31)(2)0310,201,23xxxxxxxx++=++=+=+== −= −2. Solve for x: ()245x=45x45x= ±=±Answering of homework questions over lesson 11. Lesson 12 Section 2.3 (con’t)Solving Quadratic Equations: ax20bxc++=(1) By factoring (2) By completing the square (3) Quadratic formula 242bbacx=a±Today: Applications
Page 85 #59. A baseball is thrown up with an initial velocity of 64 ft./sec. The number of feet, above the ground aftertseconds is given by . 21664st= −+(a)When will the ball reach a height of 48 feet? (b)When will the ball hit the ground? Example: A rectangular swimming pool is 5 meters wide and 10 meters long. A tile border of uniform width is to be built around the pool, using 100 square meters of tile. Find the width of the border. s, t
Page 85 #71) A pizza box with a square base is to be made from a rectangular sheet of cardboard by cutting six 1-inch squares from the corners and the middle sections and folding up the

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