Use Cramer's rule to find the solution of the system, if possible.
?
?
A. x = 2, y = -2
B. x = 5, y = -12
C. x = 5, y = -5
D. The system is inconsistent.
E. The equations are dependent.
Answer: A
Mathematics
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= 
+ 
+ 
A. A = - 
, B = 
, C = - 
B. A = 
, B = - 
, C = - 
C. A = 
, B = 
, C = - 
D. A = - 
, B = 
, C = 
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- 
- 11.7
for x = -4 and z = 5
A. 10.7 B. -20.7 C. -2.7 D. -12.7
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Solve for the variable. Choose the method you feel will work best.x(5x + 8) = 4
A. x = 
, x = -2
B. x = 0, x = 
C. x = 
, x = 2
D. x = 0, x = - 
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Use the given vectors to find the indicated expression.v = -3i + 2j + k, w = -4i + 3j - kFind (-3v) × w.
A. 15i + 21j + 3k B. -15i + 27j - 3k C. 7i + 9j - 33k D. 3i + 5j + 35k
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