Solve the problem.The amount of a certain drug in the bloodstream is modeled by the function 
, where y0 is the amount of the drug injected (in milligrams) and t is the elapsed time (in hours). Suppose that 10 milligrams are injected at 10:00 A.M. If a second injection is to be administered when there is 1 milligram of the drug present in the bloodstream, approximately when should the next dose be given? Express your answer to the nearest quarter hour.
A. 5: 30 P.M
B. 3:45 P.M
C. 12:30 P.M
D. 5:45 P.M
Answer: B
Mathematics
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Approximate the value using a calculator. Express answer rounded to three decimal places.4.9522.102
A. 39.598 B. 10.409 C. 28.869 D. 2757.742
Mathematics
Solve.A fish tank is 3 feet wide, 5 feet long, and 2 feet high. How much water will the tank hold?
A. 6 ft3 B. 30 ft3 C. 10 ft3 D. 15 ft3
Mathematics
Condense the expression to the logarithm of a single quantity. ? log x - 2log y + 3log z ?
A. 
B. 
C. 
D. 
E. 
Mathematics
Write the opposite of the number.-28
A. 0
B. -28
C. 28
D. - 
Mathematics