Solve the system of equations using the inverse of the coefficient matrix.5x + 4y = 8-4x + 2y = -22
A. x = 4, y = -3
B. x = -4, y = 3
C. x = -3, y = 4
D. x = 3, y = -4
Answer: A
Mathematics
You might also like to view...
Find all the first order partial derivatives for the following function.f(x, y) = 
A. fx(x, y) = - 
; fy(x, y) = - 
B. fx(x, y) = 
; fy(x, y) = 
C. fx(x, y) = - 
; fy(x, y) = - 
D. fx(x, y) = - 
; fy(x, y) = - 
Mathematics
Find the probability.A lottery game contains 22 balls numbered 1 through 22. What is the probability of choosing a ball numbered 23?
A. 
B. 0
C. 1
D. 22
Mathematics
Find the amplitude, period and phase shift of  figure 1.png)
 figure 2.png)
Mathematics
Use the distributive law to write an equivalent expression.-6(9m - 4)
A. -24m + 54 B. -54m - 24 C. 24m - 54 D. -54m + 24
Mathematics