Perform the indicated operations and simplify.
A. 
B. 
C. 
D. 
E. 
Answer: A
Mathematics
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Solve the system of equations. x -y + 5z = -45x+ z = 0 x + 4y +z = 16
A. (0, 4, -4) B. (4, 0, 0) C. (0, 0, 4) D. (0, 4, 0)
Mathematics
Identify the equation as either an identity or not.(sin ? + cos ?)2 = 1
A. Identity B. Not an identity
Mathematics
Simplify the expression.64-4/3
A. - 
B. 256
C. 
D. not a real number
Mathematics
Solve the problem.Let f(x) = x1.46 - x3.5. Approximate f(2.22) to the nearest hundredth.
A. x ? 0.37 B. x ? 0.25 C. x ? -13.82 D. x ? -13.10
Mathematics