Solve the problem.The formula D = 6e-0.04h can be used to find the number of milligrams D of a certain drug in a patient's bloodstream h hours after the drug has been given. When the number of milligrams reaches 2, the drug is to be given again. What is the time between injections?
A. 29.25 hr
B. 17.33 hr
C. 27.47 hr
D. 44.79 hr
Answer: C
Mathematics
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= 1
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Use inductive reasoning to predict the next number in the sequence.1, - 
, 
, - 
, 
, ...
A. 
B. - 
C. 
D. - 
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Evaluate the expression for the given replacement values.x - y + z for x = 18, y = 10, z = 3
A. 31 B. 11 C. 12 D. 5
Mathematics
Solve.y varies jointly with x and w. If y = 2.4 when x = 30 and w = 8, find y when x = 45 and w = 8.
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Mathematics