Use Cramer's rule to solve the system. 4x + 4z = 40-7x + 5y + 6z = 64-2x - 2y = -16
A. {(2, 6, 8)}
B. {(3, 4, 8)}
C. {(2, -6, -8)}
D. {(6, 8, 6)}
Answer: A
Mathematics
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Provide an appropriate response.Is f continuous at x = 4? 
A. Yes B. No
Mathematics
Perform the indicated operations. Express the answer as a single polynomial in standard form.6x6(3x5 + 2x4 - 6)
A. 18x11 + 12x10 B. 18x11 + 2x4 - 6 C. 18x5 + 12x4 - 36 D. 18x11 + 12x10 - 36x6
Mathematics
For the functions f and g, find the requested value.Evaluate (f ? g)(2).
A. -4 B. 0 C. -3 D. -5
Mathematics
Determine if the given ordered triple is a solution of the system.(-3, 2, -4)3x + 2y + z = -115x - 3y - z = -234x + y + 4z = -26
A. solution B. not a solution
Mathematics