Use Gaussian elimination to solve the system of equations.x+ 2y+ 2z= 12 5y+ 4z= 17? z= 3
A. (4, 1, 3)
B. (3, 1, 4)
C. (4, 3, 1)
D. No solution
Answer: A
Mathematics
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Solve and check.
= 
A. x = 4
B. x = 68
C. x = 
D. x = 2412
Mathematics
Find the least common multiple.x2- 4x+ 4, 4x- 8
A. 4(x - 2)(x + 2) B. 4(x + 2)(x - 2) C. 4(x + 2)(x + 2) D. 4(x - 2)(x - 2)
Mathematics
Find u ? v for the two vectors given. Round your answer to three decimal places.A vector u of length 2 pointing 45° to the left of the positive y-axis and a vector v of length 9 pointing 15° to the right of the negative y-axis.
A. -15.588 B. -9.526 C. -12.728 D. -17.387
Mathematics
Find the value of the constant k that makes the function continuous.g(x) = 
A. k = 8
B. k = 
C. k = 22
D. k = 
Mathematics