Solve the inequality.x2 + 5x + 4 > 0
A. (-?, -4)
B. (-1, ?)
C. (-4, -1)
D. (-?, -4) or (-1, ?)
Answer: D
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Determine whether the argument is valid or invalid.If Ann so wishes, then Bill will be the president. Manuel is a public defender or Bill will be the president. Manuel is not a public defender. Therefore, Ann does not so wish.
A. Invalid B. Valid
Solve the problem.A gazebo is designed with 5 sides, and a roof truss runs from each corner to the center. You make two cuts on the end of each truss so that a point is formed as illustrated. What angle (to the nearest degree) must each cut be so that the trusses fit together in the center of the roof?
A. 90° B. 108° C. 72° D. 54°
Solve the equation.-4a + 2 + 5a = 14 - 26
A. {-42} B. {14} C. {-14} D. {42}
Divide.2.55 ÷ 0.03
A. 74 B. 86 C. 8.5 D. 85