lesson12outline

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: () xx 37 2 += 2 372 0 (3 1)( 2) 0 310 , 20 1 ,2 3 ++= ++ = + =+ = =− 2. Solve for x: ( ) 2 45 x −= x x Answering of homework questions over lesson 11. Lesson 12 Section 2.3 (con’t) Solving Quadratic Equations: ax 2 0 bx c + (1) By factoring (2) By completing the square (3) Quadratic formula 2 4 2 bb a c x = a −± Today: Applications
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Page 85 #59. A baseball is thrown up with an initial velocity of 64 ft./sec. The number of feet, s , above the ground after t seconds is given by . 2 16 64 st =− + t (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.
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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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lesson12outline - MA 153 Lesson 12 Outline Practice Quiz...

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