Solve the system of equations.2x + y = -62x - z = 6y + z = -12
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Prove that the equation is an identity.sec3 x cos x - 1 = tan2x
What will be an ideal response?
Mathematics
Perform the operation.Multiply 18 by 52
A. 1036 B. 946 C. 926 D. 936
Mathematics
Graph the one-to-one function as a solid curve and its inverse as a dashed curve on the same axes.f(x) = 2x + 4
A. 
B. 
C. 
D. 
Mathematics
Find Dxy.y = 10 sinh-1 (ln x)
A. 
B. 
C. 
D. 
Mathematics