Evaluate the exponential expression.(-0.4)3
A. -0.064
B. -0.64
C. -0.0064
D. -1.2
Answer: A
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Find the limit, if it exists.
A. Does not exist
B. 
C. 11x
D. 
Use the method of writing each premise in symbols in order to write a conclusion that yields a valid argument.Hard workers sweat. Sweat brings on a chill. Anyone who doesn't have a cold never felt a chill. Anyone who works doesn't have a cold.
A. Hard workers don't go to work. B. Anyone who has a cold works hard. C. Anyone who sweats works hard. D. Hard workers don't get colds.
Solve the problem.A car travels 400 miles on level terrain in the same amount of time it travels 160 miles on mountainous terrain. If the rate of the car is 30 miles per hour less in the mountains than on level ground, find its rate in the mountains.
A. 80 mph B. 20 mph C. 50 mph D. 40 mph
Graph the solution set of the system of linear inequalities and label the vertices (if any) of the solution set.
A. 
B. 
C. 
D. 