Multiply and simplify.
? 
A. 
B. 
C. 
D. 120xy
Answer: A
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Solve.If the force acting on an object stays the same, then the acceleration of the object is inversely proportional to its mass. If a force acts on an object with a mass of 30 kilograms so that it accelerates at 
per second per second, then find the acceleration of an object with a mass of 
that is acted on by the same force.
A. 45 meters per second per second B. 48 meters per second per second C. 54 meters per second per second D. 6 meters per second per second
Match the graph to one of the polar equations. 
A. r = -2 cos ? B. r sin ? = -1 C. r = -2 sin ? D. r = -1
Solve the problem.The chairlift at a ski resort has a vertical rise of 2400 feet. If the length of the ride is 1.2 miles, what is the average angle of inclination of the lift (to the nearest tenth of a degree)?
A. 22.3° B. 25.3° C. 16.3° D. 19.3°
Solve the quadratic inequality. Graph the solution.s2 - 3s - 18 < 0
A. (-3, 6)
B. (-?, -3)
C. (-?, -3) ? (6, ?)
D. (6, ?)