Find the root.
A. -2
B. - 
C. 2
D. Not a real number
Answer: A
Mathematics
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Solve the problem.A rectangular garden measures 17.9 meters by 42.7 meters. What is its area?
A. 654.33 m2 B. 7643.3 m2 C. 60.6 m2 D. 764.33 m2
Mathematics
Find the mean.9, 9.2, 7.4, 9.2, 7.2
A. 8.4 B. 9.2 C. 9 D. 7
Mathematics
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. t = 4 minutes after the injection is given B. t = 3.65 minutes after the injection is given C. at the time of injection D. t = 0.55 minutes after the injection is given
Mathematics
Differentiate.
Mathematics