Multiply.
? 
A. 
B. 
C. 1
D. 
Answer: C
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Provide an appropriate response.Use the change-of-base formulas to find: log5 200 Round to thousandths.
Fill in the blank(s) with the appropriate word(s).
Add.(6a5 + 9a2) + (3a5 + 2a2)
A. 20a7 B. 9a10 + 11a4 C. 20a14 D. 9a5 + 11a2
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. 5:45 P.M C. 12:30 P.M D. 3:45 P.M
Solve the problem.If sin ? = 0.4, find sin (? + ?).
A. -0.6 B. 0.6 C. 0.4 D. -0.4