Graph the solution set of the system of inequalities or indicate that the system has no solution.3x - y ? -9x + 2y ? -6
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem. Unless stated otherwise, assume that the projectile flight is ideal, that the launch angle is measured from the horizontal, and that the projectile is launched from the origin over a horizontal surfaceA spring gun at ground level fires a tennis ball at an angle of 54°. The ball lands 25 m away. What was the ball's initial speed? Round your answer to the nearest tenth.
A. 5.1 m/sec B. 17.4 m/sec C. 257.6 m/sec D. 16.1 m/sec
Solve the problem.The force F (in N) exerted by a cam on a lever is given by F = x4 - 10x3 + 45x2 - 55x + 25, where x (1 ? x ? 5) is the distance (in cm) from the center of rotation of the cam to the edge of the cam in contact with the lever. Find the instantaneous rate of change of F with respect to x when x = 2 cm.
A. 29 N/cm B. 3 N/cm C. 31 N/cm D. 37 N/cm
Use the factor theorem to decide whether or not the second polynomial is a factor of the first.5x4 + 11x3 - 2x2 + x + 4; x + 2
A. Yes B. No
Solve the equation by completing the square.15d2 + 28d + 12 = 0
A. 
B. 
C. 
D. 