2730 question 18

This preview shows page 27 - 30 out of 30 pages.

Question 18 Correct 8.75 points out of 8.75 Solve the system using Gaussian elimination or Gauss-Jordan elimination. -5 y = 24 - 3 x 2( x - 4 y ) = 49 - Select one: y a. {(7, 9)} b. {(-9, -7)} c. {(-7, -9)} d. {(9, 7)} The correct answer is: {(-7, -9)}
27/30
9/28/2020 Graded Exam #4 Question 19 Correct 8.75 points out of 8.75 Solve the system using Gaussian elimination or Gauss-Jordan elimination. -3 x - 3 y - 3 z = 30 -9 x - 9 y - 9 z = 90 -1.5 x - 1.5 y - 1.5 z = 15 Select one:
28/30
9/28/2020 Graded Exam #4 Question 20 Correct 8.75 points out of 8.75 For the given augmented matrix, determine the number of solutions to the corresponding system of equations. Select one:
29/30 Quiz navigation Show one page at a time Finish review 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
9/28/2020 Graded Exam #4 30/30 Questions? Please contact our Student Advisors at (877) 787-8375, Live Chat, or create a Support Request Copyright © 2020 StraighterLine. Privacy Policy Terms of Use

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture