Mathematics > QUESTIONS & ANSWERS > MATH 114 Week 8_Practice Final Exam (Latest 2019/20) With illustrated workings complete guide,Devry  (All)

MATH 114 Week 8_Practice Final Exam (Latest 2019/20) With illustrated workings complete guide,Devry University-Chicago.

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MATH 114 Week 8 Practice Final 1. Question: Solve the following system of equations by graphing. If the system is inconsistent or the equations are dependent, say so. 24x–4y=48 6x = y + 12 2. Qu... estion: A motel clerk counts his $1and $10 bills at the end of the day. He finds that he has a total of 60 bills having a combined monetary value of $195. Find the number of bills of each denomination he has. 3. Question: Determine whether the graph to the right is a function. Using the vertical line test, is this the graph of a function? 4. Question: Factor the trinomial. s2–17s +70 5. Question: Use the quadratic formula to solve the equation. 5×2–7x–3 = 0 6. Question: Complete thefactoring. 7. Question:Given the function f(x) = x2 – x + 6, find each of the following. f(5), f(- 8), f(0) 8. Question:Factor completely. 9. Question: Find – √(9/4) 10. Question: Use the square root property to solve the equation. (x – 1)2 = 16 11. Question: Factor by grouping. 3s2 + 16s + 5 12. Question:Simplify 13. Question:Solve the following system by the substitution method. Check the solution(s). 7y – 6x = – 15 x – 5y = – 9 14. Question: Solve the following system by the elimination method. Check the solution. 2.6x + 1.6y = 11.2 1.3x – 0.3y = 12.2 15. Question: Graph the quadratic function by plotting points. Give the coordinates of the vertex. y = -2×2 + 4 16. Question: Find the domain and the range of the relation, and determine whether it is a function. {(10, 1),(- 1, – 4),(2, -2),(5, – 9)} 17. Question: Factor the trinomial. c2 – c – 6 18. Question: Find all the square roots of 100. 19. Question: Simplify byfactoring. 20. Question: Use the quadratic formula to solve the equation. x2-= 1 21. Question: Factor the trinomial completely. 2r2+9r + 9 22. Question: Sketch the graph of the parabola. Find the coordinates of the vertex. y = – x2 + 4x – 9 23. Question: Assume that all variables represent nonnegative real numbers. 24. Question: Factor the trinomial. 5n3 – 15n2 – 2300n 25. Question: Solve the following problem using a system of equations. How many pounds of nuts selling for $6 lb and raisins selling for $3 per lb should a person combine to obtain 90 lb of a trail mix selling for $4 per lb? 26. Question: Solve the equation by using the square root property. Simplify all radicals. x2 = 100 27. Question: The product of two consecutive positive integers is 1 more than their sum. Find the integers. 28. Question: Solve the following system by the elimination method. 5x – y = 25 x + 3y =21 29. Question:Solve the following system by the substitution method. Check the solution (s). 15x – 10y = 5 15y = – 4 + 5x [Show More]

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