Rationalize the denominator. Assume that all radicands represent positive real numbers.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Graph the function.Graph the lower branch of the hyperbola y2 - 4x2 = 1.
A. 
B. 
C. 
D. 
Mathematics
Solve using matrices.x - 5y = -4x + 8y = -4
A. (0, -4) B. (4, 0) C. (0, 4) D. (-4, 0)
Mathematics
Solve the equation.5x2 - 6x + 7 = x + 1
A. 
± 
i
B. 
± 
i
C. - 
± 
i
D. 
± 
Mathematics
Solve, finding all solutions in [0, 2?).cos 2x + sin x = 1
A. 
, 
B. 
, 
, 
, 
C. 
, 
D. 0, ?, 
, 
Mathematics