Find all values of x (if any) where the tangent line to the graph of the function is horizontal.y = x3 - 12x + 2
A. 0, 2
B. 2, -2
C. -2, 0, 2
D. 0
Answer: B
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Round to the nearest thousandth.6.49999
A. 6.500 B. 7.000 C. 6.490 D. 6.590
Find the domain of the function.
A. {0} B. all real numbers C. {x|x ? 0} D. {x|x ? 0}
Solve the problem.The concentration of a drug in the bloodstream, measured in milligrams per liter, can be modeled by the function, 
where t is the number of minutes after injection of the drug. When will the drug be at its highest concentration? Approximate your answer rounded to two decimal places.
A. at the time of injection B. t = 4 minutes after the injection is given C. t = 3.65 minutes after the injection is given D. t = 0.55 minutes after the injection is given
Solve the problem.A bag of marbles has twice as many blue marbles as green marbles, and the bag has at least 15 marbles in it. At least how many green marbles does it have?
A. At least 8 green marbles B. At least 10 green marbles C. At least 6 green marbles D. At least 5 green marbles