1624 question 13

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16/24Select one:a. 63 miles per hourb. 21 miles per hourc. 105 miles per hourd. 84 miles per hourThe correct answer is: 105 miles per hourQuestion 13Correct8.75 points outof 8.75Solve the problem. A helicopter flies 168 miles against the wind in 2 hours; with the wind, it can fly 252 miles in the sameamount of time. Find the speed of the helicopter in still air.
3/5/2019Graded Exam #4Question 14Correct8.75 points outof 8.75Find three ordered triples that are solutions to the linear equation in three variables. 4x- 4y- 2z= 32
3/5/2019Graded Exam #4Question 15Incorrect0.00 points outof 8.75Solve the system. If a system has one unique solution, write the solution set. Otherwise, determine thenumber of solutions to the system, and determine whether the system is inconsistent, or the equationsare dependent.
3/5/2019Graded Exam #4Question 16Correct8.75 points outof 8.75Solve the system using Gaussian elimination or Gauss-Jordan elimination. 2(x- 2z) = 3y+ x+ 30 x= 2y- 2z- 3 -5x+ 2y+ 6z= -41
3/5/2019Graded Exam #4

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