Simplify.
A. 
B. 
C. 
D. none of these
Answer: B
Mathematics
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Match the system of equations with one of the graphs.y2 - 10y = x - 4xy = 7
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operations.In an electric circuit the impedance is 2140 - 1350j ohms. Write this in exponential form.
A. 2530e-0.563j B. 1660e-1.01j C. 1660e-0.563j D. 2530e-1.01j
Mathematics
Use counting to determine the whole number that corresponds to the cardinality of the set.A = {x|x ? N and 4x + 2 = 4x}
A. Infinite B. n(A) = 2 C. n(A) = 0 D. n(A) = 1
Mathematics
Rotate the axes so that the new equation contains no xy-term. Graph the new equation.x2 + 2xy + y2 - 8x + 8y = 0
A. 
B. 
Mathematics