Solve the problem.The half-life of plutonium-234 is 9 hours. If 60 milligrams is present now, how much will be present in 6 days? (Round your answer to three decimal places.)
A. 0.59
B. 37.797
C. 19.793
D. 0.001
Answer: D
Mathematics
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Provide an appropriate response.Which of the following statements is true?
A. The median is always one of the data points in a set of data B. The mean is always one of the data points in a set of data. C. The mode is always one of the data points in a set of data. D. None of the above is true
Mathematics
Evaluate.
5
A. 
B. - 
C. - 
D. 
Mathematics
Solve the equation by making an appropriate substitution.(x + 4)2 + 5(x + 4) - 6 = 0
A. {-5, 2} B. {-2, 5} C. {3, 10} D. {-10, -3}
Mathematics
Find the exact value of the expression.cos-1
A. 
B. 
C. 
D. 
Mathematics