Use the inverse of the coefficient matrix to solve the system of equations. y + z = 5,3x -z = 8, 2x + y + 3z = 9; A-1 = - 
A. 
B. 
C. 
D. 
Answer: C
You might also like to view...
Evaluate the algebraic expression for the given value(s) of the variable(s).4y + 
; x = 5, y = 7
A. 9 B. 37 C. 73 D. 13
Solve the problem.An object is propelled upward at an angle ?, 45° < ? < 90°, to the horizontal with an initial velocity of v0 feet per second from the base of a plane that makes an angle of 45° with the horizontal. If air resistance is ignored, the distance R that it travels up the inclined plane is given by the function R(?) = 
[sin(2?) - cos(2?) - 1]. Show that R(?) = 
[sin ?(cos ? + sin ?) - 1].
What will be an ideal response?
Determine if the type of relation is linear, nonlinear, or none.
A. linear B. nonlinear C. none
Write the complex number in the form a + bi.8(cos 30° + i sin 30°)
A. 4
+ 4i
B. 4 + 4
i
C. 
+ 
i
D. 
+ 
i