This quiz works best with JavaScript enabled. Home > English Grammar > Grammar > Discourse > Substitution – Quiz 25 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Substitution Quiz 25 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. $\int_{ }^{ }\sqrt{x^3-3x}\left(x^2-1\right)dx$ A) $\frac{2}{3}\left(x^3-3x\right)^{\frac{3}{2}}+C$. B) $\sqrt{x^3-3x}\left(2x\right)+C$. C) $\frac{3}{2}\left(x^3-3x\right)^{\frac{3}{2}}+C$. D) $\frac{2}{9}\left(x^3-3x\right)^{\frac{3}{2}}+C$. Show Answer Correct Answer: D) $\frac{2}{9}\left(x^3-3x\right)^{\frac{3}{2}}+C$. 2. Solve the system of linear equations using substitution. $\frac{1}{2}x+y=2$ $-x+y=2$ A) (2, 0). B) (0, 2). C) (0, 0). D) (0, -2). Show Answer Correct Answer: B) (0, 2). 3. Solve the system by substitution methodx = 32x + 5y = 16 A) (3, 2). B) (3, 0). C) (2, 5). D) (2, 10). Show Answer Correct Answer: A) (3, 2). 4. What is the solution to the system of equations:y= x+8 and x+y=2? A) No Solution. B) (3, -5). C) (-3, 5). D) Infinite Solutions. Show Answer Correct Answer: C) (-3, 5). 5. Solve the system by substitution.y = 4x-10y = 3x-5 A) (1, 2). B) (1, -5). C) (2, 1). D) (5, 10). Show Answer Correct Answer: D) (5, 10). 6. What is the type of reaction between chloromethane and ethanolic sodium hydroxide heated under reflux? A) Electrophilic addition. B) Nucleophilic substitution. C) Elimination. D) Electrophilic substitution. Show Answer Correct Answer: C) Elimination. 7. In electrophilic aromatic substitution reactions, a-CO$_{2}$H substituent on the aromatic ring is A) A deactivator and a m-director. B) A deactivator and an o, p-director. C) An activator and a m-director. D) ) an activator and an o, p-director. Show Answer Correct Answer: A) A deactivator and a m-director. 8. A person interested in reading books and nothing else A) Student. B) Book-keeper. C) Scholar. D) Book worm. Show Answer Correct Answer: D) Book worm. 9. In electrophilic aromatic substitution reactions, a-NHCOCH$_{3}$ substituent on the aromatic ring is A) A deactivator and a m-director. B) A deactivator and an o, p-director. C) An activator and a m-director. D) An activator and an o, p-director. Show Answer Correct Answer: D) An activator and an o, p-director. 10. Solve the system using elimination3x+y=-56x+2y=10 A) No Solution. B) (6, -2). C) Infinite Number of Solutions. D) (2, 3). Show Answer Correct Answer: A) No Solution. 11. Solve the system using substitution. $-5x-3y=14$ $x=-1$ A) (-1, 3). B) (-3, -1). C) (-1, -3). D) (3, 1). Show Answer Correct Answer: C) (-1, -3). 12. Work out the value of y + x-z when x = 3, y =-2 and z =-4. A) -3. B) 3. C) -5. D) 5. Show Answer Correct Answer: A) -3. 13. Evaluate f(-2) if f(x) = x$^{2}$+ 3 A) 7. B) -1. C) -7. D) 1. Show Answer Correct Answer: A) 7. 14. What step would I do second? (4-2) x 9 + 7 = A) Multiplication. B) Addition. C) Subtraction. D) Dividing. Show Answer Correct Answer: A) Multiplication. 15. What is the first step to solving this system of equations by substitution? x =-3y-17 2x + 3y =-7 A) 2(-3y-17) + 3y =-7. B) 2(-3x-17) + 3x =-7. C) 2(3y + 17) + 3y =-7. D) 2x + 3(-3x-17) =-7. Show Answer Correct Answer: A) 2(-3y-17) + 3y =-7. 16. If x = 7, calculate x-9 A) -2. B) 2. C) 3. D) None of the above. Show Answer Correct Answer: A) -2. 17. 3x + y = 1y = 4x + 1 A) (0, 1). B) (0, 8). C) No Solution. D) (0, -1). Show Answer Correct Answer: A) (0, 1). 18. What is the solution to this system?y= 4x + 32x-3y = 21 A) (0, 1). B) (-3, -9). C) (3, -9). D) (-3, 9). Show Answer Correct Answer: B) (-3, -9). 19. 2 + X = yIf X = 8, then Y = A) 10. B) 6. C) 20. D) None of the above. Show Answer Correct Answer: A) 10. 20. New lands were explored in what era? A) Modern History. B) Contemporary Era. C) Middle Ages. D) Prehistory. Show Answer Correct Answer: A) Modern History. 21. True or False? (1, 0) is a solution to the system:y = x-1y = 2x-3 A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 22. What would be an appropriate way to rewrite this system of equations x = 4y +23x + 2y = 10 A) 3x + 2y + 10 + 4y + 2 = x. B) 3x + 2(4y +2) =10. C) 3(4y+2) + 2y = 10. D) None of the above. Show Answer Correct Answer: C) 3(4y+2) + 2y = 10. 23. Solve the following system of equation:y=2x+18 and y=4x+6 A) (12, 42). B) (4, 22). C) (6, 30). D) (6, 12). Show Answer Correct Answer: C) (6, 30). 24. In the Paleolithic Age, people ..... A) Were hunters and gatherers. B) Were nomads. C) Lived in caves. D) All of the above. Show Answer Correct Answer: D) All of the above. 25. Solve the system of linear equations using substitution. $y=5x-6$ $y=4x-2$ A) (4, 0). B) (14, 4). C) (0, 4). D) (4, 14). Show Answer Correct Answer: D) (4, 14). 26. The edges of the roofs which come out beyond the walls is called as A) Eaves. B) Roofedges. C) Cornders. D) Borders. Show Answer Correct Answer: A) Eaves. 27. $f\left(x\right)=x^3+7x^2+5x-6$ A) 0. B) 4. C) 5. D) -1. Show Answer Correct Answer: B) 4. 28. Evaluate 5s-t when s=3 and t=-1. A) 52. B) 54. C) 16. D) 14. Show Answer Correct Answer: C) 16. 29. What is the solution to the system of equations:x = 2y + 3 and 4x-8y=12? A) Infinite Solutions. B) (-1, 1). C) (0, 2). D) No Solution. Show Answer Correct Answer: A) Infinite Solutions. 30. What is the correct first step in solving this system by substitution?x = 2y +11-7x-2y =-13 A) -7(2y+11)-2y =-13. B) -7x-2(2y +11) =-13. C) 2y+11-2y =-13. D) None of the above. Show Answer Correct Answer: A) -7(2y+11)-2y =-13. ← PreviousNext →Related QuizzesGrammar QuizzesEnglish Grammar QuizzesSubstitution Quiz 1Substitution Quiz 2Substitution Quiz 3Substitution Quiz 4Substitution Quiz 5Substitution Quiz 6Substitution Quiz 7Substitution Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books