Mathematics
Mathematics, 27.09.2019 20:00, heyitsnott3rex

Solve with matrices. 5x -3y = 18 and 2x + 7y = -1

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Mathematics, 27.10.2019 03:43, JOEFRESH10
Me with matrices! fully explain to me what to do, for i have no clue what i am doing. i can substitute, and eliminate, but lord me for i can not do matrices. solve the system using matrices (row operations) −6x−y−5z=−10 − 5x+6y+4z=−7 2x−3y−2z=3 also, how many solutions are there to this system?
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Mathematics, 29.10.2019 06:31, yaya111601
Which of the following subsets of ℝ3×3 are subspaces of ℝ3×3? a. the 3×3 matrices whose entries are all greater than or equal to 0 b. the 3×3 matrices a such that the vector (276) is in the kernel of a c. the diagonal 3×3 matrices d. the non-invertible 3×3 matrices e. the 3×3 matrices in reduced row-echelon form f. the 3×3 matrices with all zeros in the third row
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Mathematics, 04.11.2019 20:31, laniflower6
Which of the following subsets of m3(ℝ) are subspaces of m3(ℝ)? (note: m3(ℝ) is the vector space of all real 3 x 3 matrices) a. the invertible 3×3 matrices b. the 3×3 matrices with all zeros in the second row c. the diagonal 3×3 matrices d. the 3×3 matrices in reduced row-echelon form e. the 3×3 matrices whose entries are all integers f. the symmetric 3×3 matrices
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Mathematics, 07.11.2019 06:31, tporter00
Which of the following subsets of r3×3r3×3 are subspaces of r3×3r3×3? (r3×3r3×3 denotes the set of all 3×33×3 matrices with real entries.) a. the 3×33×3 matrices whose entries are all integers b. the diagonal 3×33×3 matrices c. the 3×33×3 matrices in reduced row-echelon form d. the 3×33×3 matrices with all zeros in the third row e. the invertible 3×33×3 matrices f. the symmetric 3×33×3 matrices
Answers: 1
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Solve with matrices. 5x -3y = 18 and 2x + 7y = -1...

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