Write the rational expression as an equivalent rational expression with the desired denominator.
= 
A. x + 4
B. (x - 1)(2x + 1)
C. (x + 4)(2x + 1)
D. (x - 1)(x + 6)
Answer: C
Mathematics
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A. 3 hr
B. 
hr
C. 5 hr
D. 4 hr
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Determine the symmetries of the curve.r = 5 - 3 cos ?
A. No symmetry B. Origin only C. x-axis only D. y-axis only
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Convert as indicated.0.57 km to centimeters
A. 5700 cm B. 5.7 cm C. 57,000 cm D. 570 cm
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Solve the equation.21 + 2x = 8
A. {-1} B. {1} C. {4} D. {2}
Mathematics