Write the expression in lowest terms.

A. 0
B. -1
C. 1
D. -y


Answer: C

Mathematics

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Simplify the expression using exponent rules. Then write the answer in scientific notation.

A. 0.4 × 107 B. 0.4 × 109 C. 4 × 103 D. 4 × 108

Mathematics

Use the quadratic formula to solve the equation.6x2 + 12x = - 3

A.
B.  
C.  
D.  

Mathematics

Use Cramer's rule to solve the system of linear equations.2.8x + 2.3y = 43.62.5x - 1.2y = 12.9

A. (-8, 9) B. (8, 9) C. (-9, -8) D. (9, 8)

Mathematics

Find the asymptotes of the hyperbola.y2 - x2 - 14y + 8x - 3 = 0

A. y - 7 = ± (x - 4)
B. y - 7 = ± (x - 4)
C. y = ± x
D. y - 7 = ± 6(x - 4)

Mathematics