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College Algebra Math 110 Module 8 Give yourself enough space to show all of your work. Grading Criteria: Show all of your work; you may be able to...

College Algebra, 30 questions, need help answering and showing work for each question.

College Algebra Math 110 Module 8 Give yourself enough space to show all of your work. Grading Criteria: Your assignment will be graded according to the answer key. Show all of your work; you may be able to earn partial credit for your thought process even if a computational error led you to the wrong answer. 1. Simplify the following, combining like terms: 3[4( 3 1)] {[ 4(7 ) 4] [2(6 )]} x y x y x y   2. Find the LCM of 120 and 572. 3. Find the equation of the line that goes through the following two points: 2, 3 and –4,7 4. The cost to ship a package from Chicago to Flagstaff is $8.30 per pound for the first 3 pounds and $4.65 per pound for each additional pound. Find the cost to ship a 9-pound package from Chicago to Flagstaff. 5. Find a line parallel to 5 2 4 13 4 2 x y y x   6. Solve the following inequality: 6(3.1 2.8 ) 9.5 4.9 x x   7. Simplify the following, combining like terms: 3 2 2 2 3 1 3 (5 4 )( 2 9 7 ) ab a b a b a b a b 8. Solve the following precisely for y : 2 10 4 7 2 y y 9. Simplify the following: 5 1 21 20 6 / 4 * / 3 3 5 7 7
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10. Find the GCF of 4 4 5 2 7 5 630 ,2772 ,1134 y x x y x y 11. Factor: 4 3 2 2 81 54 16 t wt w t 12. Solve: 2 2 2 7 2 8 5 6 5 y y y y y     13. Multiply and simplify, if possible, the following: 2 3 2 8 16 3 * 20 4 x x x x x x x   14. Simplify the following as much as possible: 2 2 2 7 4 5 . 3 2 14 24 2 8 y y y y y y y y 15. Solve the following: 2 4 6 7 2 10 2 35 x x x x x 16. If it takes 8 people 53 hours to paint a house, how long will it take 7 people to paint the house (assuming they all work at the same rate)? 17. Determine if the ordered pair (–2, –6) is a solution to the following system: 2 4 20 x y   3.5 10 1 0 y x   18. Solve the following system of equations: 3 4 11 t s 8 3 3 11 s t t   19. Solve the following system of equations: 1 7 5 2 4 x y 3 29 4 2 2 x y  
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Answer 1:
Simplify the expression as 3 4 x 3 y 1 4 7 x y 4 2 6 x y 3 4 x 12 y 4 28 x 4 y 4 12 x 2 y 3 4 x 12 y 4 28 x 4 y 4 12 x 2 y 12 x 36 y 12 28 x 4 y 4 12 x 2 y 12 x 12 x 28 x 36 y 4 y 2 y 12...

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