Solve the system of equations using matrices. Use Gauss-Jordan elimination. x = -1 - y - z x - y + 4z=-63x + y = 7 - z
A. {(-3, -2, 4)}
B. {(4, -2, -3)}
C. {(-3, 4, -2)}
D. {(-2, -3, 4)}
Answer: B
You might also like to view...
Solve the problem.Use Newton's method to find the two real solutions of the equation 
.
What will be an ideal response?
Solve the problem.A projectile is fired with an initial velocity of 400 feet per second at an angle of 70° with the horizontal. To the nearest foot, find the maximum altitude of the projectile.
A. 2191 ft B. 2200 ft C. 2208 ft D. 2224 ft
Find all solutions of the equation in the complex number system.(x + 1)2 = -7
A. {-1 + i
, -1 - i
}
B. {-1 + 
, -1 - 
}
C. {6, 8}
D. {-1 - 
}
Solve the problem.Median family income in Country X between 1990 and 1999 can be modeled by 
where x is the year. Determine symbolically when the median income was $42,477.
A. x ? 2000 B. x ? 1994 C. x ? 1998 D. x ? 1996