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# College Algebra Day 10 notes 12458

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This 5 page Class Notes was uploaded by Corina Johnson on Sunday February 21, 2016. The Class Notes belongs to 12458 at University of Houston taught by Moses Sosa in Spring 2016. Since its upload, it has received 15 views. For similar materials see College Alegbra in Math at University of Houston.

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Date Created: 02/21/16

1310_Test2Rev Page 1 of 4 Math 1310 Test 2 Review Example 1: The length of a rectangle is twice its width. If the perimeter of the rectangle is 180 feet, find the dimensions of the rectangle. Example 2: Solve the following system of equations for y: 7 4 xy = 6x−1 =− 0 Example 3: State all solutions to the equation: x +40 = 0 1310_Test2Rev Page 2 of 4 Example 4: Solve the following equation: 2 xx+57−= 0 Example 5: Solve the following by completing the square: xx−082+= 0 Example 6: Solve: 31 − =1 10 xx 6 1310_Test2Rev Page 3 of 4 32− i Example 7: Simplify 2+i Example 8: Simplify A. 5 4(i1i 2) B. (2−−3i)i ( 1 5 ) Example 9: Solve the following inequality and express your answer in interval notation. −23<− 7≤ x Example 10: Solve the following inequality and express your answer in interval notation. |7 8| 4 3 x + −<− 1310_Test2Rev Page 4 of 4 Example 11: Find the solution of the equation 4+|1− x . Example 12: Find all solutions to the equation: 3| |6=x Example 13: Tom has a drawer with dimes, nickels and pennies in it. He has an equal number of each kind of coin. Tom counted his money and found that he has a total of $2.40 in the drawer. How many nickels does Tom have?

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