Determine the principal value without using a calculator.3
A. 3
B. Not real number
C. 9
D. 5
Answer: A
Mathematics
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Use the horizontal line test to determine whether the function is one-to-one.
A. Yes B. No
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Find an equation of the parabola described.Focus at (0, 11); directrix the line y = -11
A. y2 = 44x B. x2 = -44y C. x2 = 44y D. y2 = 11x
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Find the vertical asymptotes of the rational function.g(x) = 
A. x = -2, x = -9 B. none C. x = -2, x = 2 D. x = -2, x = 2, x = -9
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Solve each system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent.x - y + 2z + w = 4y + z = 5z - w = 1
A. {(6 - 4w, 4 - w, 1 + w, w)} B. {(6, 4, 1, w)} C. ? D. {(2, 3, 2, 1)}
Mathematics