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Chapter 7 Review Sheet

# Chapter 7 Review Sheet - make x dozen brownies can be...

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Chapter 7 Review Sheet 1. State the Quadratic Formula. 2. For the following fractions, identify the values that x can not be. (you are looking for the values of x that will make the fraction undefined.) a. 5 3 ( 9)( 3) - - + x b. 2 2 8 2 4 25 - - c. 2 2 5 6 10 21 - - + 3. Determine the solutions to the quadratic equations: a. (3 2)( 5) 0 - - = b. 2 9 27 0 + = c. 2 10 16 0 - + = d. 2 4 12 0 - - = e. 2 12 22 2 + + = f. 2 3 9 30 0 - - = g. 2 4 21 = + h. 2 2 50 = i. ( 2)( 5) 2 + + = - j. 2 3 7 20 = + k. 2 100 = l. ( 1)(2 5) 9 - - = 4. Use the quadratic formula to determine the solution of the quadratic equations: a. 2 3 3 0 + - = b. 2 2 9 0 + - = c. 2 4 2 10 0 - - =

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5. Solve each of these expressions. a. 4 3 1 n 2n 2 - = - = b. x 4 4 x 4 x 4 - = - = - - - c. 10 3 m m 2 10 + = + = = = d. 20 x 9 x + = - + e. 2 3x 1 3 x 9 x 3 x 3 + = = - - + 3. The area of a rectangle is 180 square feet. Determine the length and width of the rectangle if the length is 3 feet greater than the width? 4. Brian has a rectangular table. The length of the table is 2 feet greater than the width of the table. A diagonal across the table is 4 feet greater than the width of the table. Find the length of the diagonal across the table. 5. The Pine Hills Neighborhood Association has determined that the cost, C, to
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Unformatted text preview: make x dozen brownies can be estimated by the formula, 2 C x 79x 20 =-+ =-+--. If they have \$100 to be used to make the brownies, how many dozen brownies can the association make to sell at a fund-raiser. 6. At a winery in Napa Valley, California, one pipe can fill a tank with wine in 3 hours and another pipe can empty the tank in 5 hours. If the valves to both pipes are open, how long will it take to fill the empty tank? 7. Linda and John Franco own a house cleaning service. When Linda cleans Damon’s house by herself, it takes 7 hours. When Linda and John work together, they can clean the house in 4 hours. How long will it take John to clean the house by himself?...
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Chapter 7 Review Sheet - make x dozen brownies can be...

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