Solve.x2 - x = 72
A. 8, 9
B. 1, 72
C. -8, -9
D. -8, 9
Answer: D
Mathematics
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A. -4 + 4i B. 4 - 4i C. -4 + i D. -4 - 4i
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An arch is a semi-ellipse 16 meters wide and 8 meters high. Write the equation of the ellipse if the ellipse is centered at the origin. ?
A. 
B. 
C. 
D. 
E. none of these
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Use the graph to write the inequality or system of inequalities.
A. y < x - 3 y < -2x + 3 B. y > x - 3 y < -2x + 3 C. y > x - 3 y > -2x + 3 D. y < x - 3 y > -2x + 3
Mathematics