Use matrices to solve the system of equations (if possible). Use Gaussian elimination with back-substitution or Gauss-Jordan elimination.
A. x = 5, y = -2, z = 4
B. x = 2, y = 5, z = -4
C. x = -5, y = -2, z = 4
D. no solution
E. x = -5, y = 2, z = 4
Answer: E
You might also like to view...
Find a formula for the nth partial sum of the series and use it to find the series' sum if the series converges.
+ 
+ 
+ ... + 
+ ...
A. 
; 2
B. 
; 2
C. 
; 2
D. 
; 2
Solve.One end of a wire is attached to the top of a 10-foot pole and the other end is anchored into the ground 5 feet from the base of the pole. Find the length of the wire, rounded to the nearest tenth.
5 feet
A. 15 ft B. 15.5 ft C. 11.7 ft D. 11.2 ft
Differentiate. 
What will be an ideal response?
Point P sweeps out central angle ? as it rotates on a circle of radius r. Find the angular velocity of point P.
?
?
If the answer needs rounding, round it to three significant digits.
?
__________ rad/sec
What will be an ideal response?