Perform the sequence of row operations on the matrix. What did the operations accomplish?
?
?
Add -4 times R1 to R2,
Add -1 times R1 to R3,
Add -2 times R2 to R3,
Add -1 times R2 to R1.
?
A. 
The operations produce a row-equivalent matrix in reduced row-echelon form.
B.
The operations produce a row-equivalent matrix in reduced row-echelon form.
C.
The operations produce a row-equivalent matrix in reduced row-echelon form.
D.
The operations produce a row-equivalent matrix in reduced row-echelon form.
E.
The operations produce a row-equivalent matrix in reduced row-echelon form.
Answer: B
You might also like to view...
Identify the number as prime, composite, or neither.36
A. Prime B. Neither C. Composite
Use a calculator to find a graphical solution to the equation. Express results to the nearest thousandth.3x2 - 5x = -1
A. 2.868, 0.464 B. -0.232, -1.434 C. 1.847, -0.180 D. 1.434, 0.232
Evaluate the expression for the given values. If necessary, round to the nearest tenth.6x2 + 3y x = 10, y = 5
A. 3090 B. 615 C. 3615 D. 180
Solve the equation.
= -7
A. -7
B. 
C. No solution
D. 7