Write the linear system as a matrix equation in the form AX = B, where A is the coefficient matrix and B is the constant matrix. 9x + 8y= 86 4y= 16
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Answer: C
Mathematics
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A. False B. True
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Solve the equation.18 - n2 = 7n
A. 2, -9 B. 9, -2 C. 2, 9 D. -9, -2
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Find the second-order partial derivative.Find fxy when f(x,y) = 8x3y - 7y2 + 2x.
A. -14 B. -28 C. 24x2 D. 48xy
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Find 
.exy = sin x
A. 
B. 
C. 
D. 
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