This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Mathematics Chapter 4 Determinants – Quiz 11 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Mathematics Chapter 4 Determinants Quiz 11 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. If we apply elementary operations on any matrix A, then value of its $\left|A\right|$ A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 2. Ahir vam dur ..... (de nosaltres) gos al veterinari. A) Els nostres. B) Les nostres. C) La nostra. D) El nostre. Show Answer Correct Answer: D) El nostre. 3. When consumer's income is expected to rise in the future, demand ..... and the demand curve shifts ..... A) Increases; leftward. B) Increases; rightward. C) Decreases; leftward. D) Decreases; rightward. Show Answer Correct Answer: B) Increases; rightward. 4. There is a family that struggles to pay rent may be forced to move frequently. This situation is an example of ..... A) Health Care Access and Quality. B) Neighborhood and Built Environment. C) Economic Stability. D) Education Access and Quality. Show Answer Correct Answer: C) Economic Stability. 5. Which is not a type of human interest story? A) An emotional story. B) A financial report. C) A conflict. D) Unique and out of the ordinary. Show Answer Correct Answer: B) A financial report. 6. A method that uses determinants to solve a system of linear equations A) Cramer's Rule. B) Scalar multiplication. C) Pythagorean Theorem. D) Decartes' Rule. Show Answer Correct Answer: A) Cramer's Rule. 7. Which factor is represented by the letter 'N' in the mnemonic device? A) National. B) Net Worth. C) Number of Prodecers/Sellers. D) Next. Show Answer Correct Answer: C) Number of Prodecers/Sellers. 8. Quins determinants serveixen per a fer preguntes? A) Els articles. B) Els demostratius. C) Els interrogatius. D) Els indefinits. Show Answer Correct Answer: C) Els interrogatius. 9. Aggregate pay can influence ..... A) The basic pay. B) Purchasing power. C) The salary. D) Market price rate. Show Answer Correct Answer: B) Purchasing power. 10. An example of physical motivation is ..... A) Visiting a museum. B) Undergoing a health check-up. C) Luxury shopping. D) Meeting friends abroad. Show Answer Correct Answer: B) Undergoing a health check-up. 11. If A is an invertible square matrix and k is a non-negative real number then $\left(kA\right)^{-1}=$ A) $k\left(A^{-1}\right)$. B) $\frac{1}{k}\left(A^{-1}\right)$. C) $-k\left(A^{-1}\right)$. D) None of these. Show Answer Correct Answer: B) $\frac{1}{k}\left(A^{-1}\right)$. 12. Use Cramer's Rule to solve the following:-3x + y = 4-5x + 2y-4z =-3-x-4y-6z = 11 A) (2, -5, -3). B) (2, -4, -4). C) (2, -3, -5). D) (-3, -5, 2). Show Answer Correct Answer: D) (-3, -5, 2). 13. Social determinants of health refer to the conditions in which people are born, grow, live, work, and age. Which of the following is not a social determinant of health? A) Genetics. B) Education. C) Access to healthcare. D) Socioeconomic status. Show Answer Correct Answer: A) Genetics. 14. How does the proportion of income spent on a good affect its price elasticity of demand? A) The higher the proportion, the more inelastic the demand. B) The higher the proportion, the more elastic the demand. C) The proportion of income has no effect on demand elasticity. D) The effect depends on the market size. Show Answer Correct Answer: B) The higher the proportion, the more elastic the demand. 15. "Detroit Ford factory closes, forcing layoffs of 3, 000 employees" A) Timeliness. B) Human Interest. C) Impact. D) Prominence. Show Answer Correct Answer: C) Impact. 16. If consumers expect prices to decrease in the near future, their demand will ..... today. A) Decrease. B) Increase. C) Stay the same. D) None of the above. Show Answer Correct Answer: A) Decrease. 17. What is the geometric interpretation of a determinant? A) The determinant indicates the angle between vectors in a matrix. B) The determinant represents the volume scaling factor of the transformation defined by the matrix. C) The determinant measures the distance between points in space. D) The determinant is the sum of the elements in the matrix. Show Answer Correct Answer: B) The determinant represents the volume scaling factor of the transformation defined by the matrix. 18. If A and B are square matrices of order 3 such that $\left|A\right|=-1$ $\left|B\right|=3$ $\left|3AB\right|$ A) 81. B) -81. C) -9. D) 9. Show Answer Correct Answer: B) -81. 19. Find the determinant of identity matrix of order $3\times3$ A) 1. B) 0. C) 3. D) None of the above. Show Answer Correct Answer: A) 1. 20. New technology advances the rate at which furniture can be assembled. Why does this change the supply? A) Change in cost of production. B) Changes in number of producers. C) Changes in expectations. D) None of the above. Show Answer Correct Answer: A) Change in cost of production. 21. Mrs. Gomez discovers that her son is having trouble studying for Biochemistry, as he is falling behind his classmates. She wants to help him find his preferred study style that can help him. What Learning Style Instrument should Mrs. Gomez and her son use? A) Group Embedded Figures Test (GEFT). B) Productivity Environmental Preference Survey (PEPS). C) MBTI Test. D) Brain Preference Indicator (BPI). Show Answer Correct Answer: B) Productivity Environmental Preference Survey (PEPS). 22. How can determinants be used to solve systems of linear equations? A) Determinants can be used to find unique solutions for systems of linear equations using Cramer's Rule. B) Determinants can only be used for quadratic equations. C) Determinants provide solutions only for non-linear systems. D) Determinants are irrelevant in solving linear equations. Show Answer Correct Answer: A) Determinants can be used to find unique solutions for systems of linear equations using Cramer's Rule. 23. Que indiquen els demostatius? A) La distancia. B) Qui es el posseidor. C) All the above. D) None of the above. Show Answer Correct Answer: A) La distancia. 24. Tanca ..... porta que fa fred! A) Una. B) Seua. C) La. D) Molta. Show Answer Correct Answer: C) La. 25. Un article pot ser A) Definit e indefinit. B) Demostratiu o possesiu. C) Exclamatiu o interrogatiu. D) Numeral o indefinit. Show Answer Correct Answer: A) Definit e indefinit. ← PreviousNext →Related QuizzesClass 12 Mathematics Chapter 4 Determinants Quiz 1Class 12 Mathematics Chapter 4 Determinants Quiz 2Class 12 Mathematics Chapter 4 Determinants Quiz 3Class 12 Mathematics Chapter 4 Determinants Quiz 4Class 12 Mathematics Chapter 4 Determinants Quiz 5Class 12 Mathematics Chapter 4 Determinants Quiz 6Class 12 Mathematics Chapter 4 Determinants Quiz 7Class 12 Mathematics Chapter 4 Determinants Quiz 8Class 12 Mathematics Chapter 4 Determinants Quiz 9Class 12 Mathematics Chapter 4 Determinants Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books