Suppose an n×n matrix a has determinant equal to 1. which of the following statements is true? check the correct answer(s) below. a. the system ax=b has a unique solution for all b in rn b. the matrix a is invertible c. the reduced row echelon form of the matrix a is the identity matrix d. the matrix a is singular. e. the homogeneous system ax=0 has infinitely many solutions f. none of the above

Identify at least three reasons the Articles of Confederations failed as a governing document. In your opinion, evaluate which defect was most debilitating, using evidence and your knowledge of American government to justify your position.

Step-by-step explanation:

which expression represents the approximate length of bc?

step-by-step explanation:

7. d. 64

8. i. 32

9. c. 125

10. j. none of the above

11. d. 81

12. i. 216

13. e. none of the above

14. g. 240

15. e. none of the above

16. g. 32

17.   e. none of the above