Solve.x(28 + 7x) = 0
A. 0, -4
B. -14
C. -7, -4
D. -4
Answer: A
Mathematics
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Find the infinite sum accurate to three decimal places.
A. -0.010 B. 0.007 C. 0.010 D. -0.007
Mathematics
Solve the inequality. Express your answer in set notation.x2 ? 9
A. {x| -3 ? x ? 3} B. {x| -3 < x < 3} C. {x| x ? 3} D. {x| x ? -3 or x ? 3}
Mathematics
Find a rectangular equation for the plane curve defined by the parametric equations.x = 3t, y = t + 7
A. y = 3x - 7
B. y = 
+ 7
C. y = 3x + 7
D. y = 
- 7
Mathematics
Solve the equation by multiplying both sides by the LCD.x = -1 + 
A. 
B. {-6, 5}
C. {-5, -6}
D. 
Mathematics