Evaluate the expression for the given values.(c - 2ab)2, if a = 2, b = -4, and c = 4
A. 400
B. 40
C. 144
D. -400
Answer: A
Mathematics
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Solve the problem.The amount of alcohol in the bloodstream, A, declines at a rate proportional to the amount, that is, 
. If 
for a particular person, how long will it take for his alcohol concentration to decrease from 0.10% to 0.05%? Give your answer to the nearest tenth of an hour.
A. 2.3 hr B. 3.5 hr C. 4.6 hr D. 0.2 hr
Mathematics
Solve the equation.
= 1 + 
A. ? B. {-12} C. {-2, 4} D. {6, 10}
Mathematics
Determine whether the equation defines y as a function of x.
?
?
A. no B. yes
Mathematics
List the intercepts of the graph. 
A. (-2, 0), (0, -2), (0, 0), (0, 2), (2, 0) B. (0, 2), (2, 0) C. (-2, 0), (0, -2), (0, 2), (2, 0) D. (-2, 0), (0, 2)
Mathematics