Recognize the elementary row operation used and determine the missing entry.
? 
A. - 
B. -12
C. 12
D. 
Answer: A
Mathematics
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Simplify the fraction.
A. -25h10 B. -25h9 C. -6h9 D. 6h10
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Solve the problem.If a rocket is propelled upward from ground level, its height in meters after t seconds is given by 
During what interval of time will the rocket be higher than 235.2 m?
A. 8 < t < 10 B. 6 < t < 8 C. 4 < t < 6 D. 0 < t < 4
Mathematics
Provide an appropriate response.Is y2 - 2y + 1 -x = 0 the equation of a circle or parabola?
A. Circle B. Parabola
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Find the vertical asymptotes of the rational function. f(x) = 
A. x = -2, x = 2 B. none C. x = 0, x = -2, x = 2 D. x = 0, x = -4
Mathematics