2326 question 18

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23/26Select one:a. b. c. d. The correct answer is:
Question 18Incorrect0.00 points out of 8.75Perform the elementary row operation on the given matrix. - \( \frac{1}{2} \)R 22R
3/9/2020Graded Exam #4Question 19Incorrect0.00 points out of 8.75Solve the system using Gaussian elimination or Gauss-Jordanelimination.3x+ 2y+ 7z= 389x+ 6y+ 21z= 1140.6x+ 0.4y+ 1.4z= 7.6
3/9/2020Graded Exam #425/26Question 20Correct8.75 points out of 8.75The solution set to a system of dependent equations is given. Write threeordered triples that are solutions to the system. Answers may vary.{|\( (\frac{6-4y-15z}{3}, y, z) \)| y and z are any real numbers}
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