Find a formula for the sum of the n terms of the sequence.
A. 
B. ?
C. 
D. 
E. 
Answer: E
Mathematics
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Solve the problem.The half-life of plutonium-234 is 9 hours. If 60 milligrams is present now, how much will be present in 3 days? (Round your answer to three decimal places.)
A. 5.952 B. 34.461 C. 47.622 D. 0.234
Mathematics
Use Lagrange multipliers to find the given extremum. Assume that x and y are positive.
?
Maximize 
Constraint 
?
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics
Divide.-3.5 ÷ 0.07
A. 34.3 B. 50 C. -50 D. -3.43
Mathematics
Evaluate the expression.
? 
A. 693 B. 7920 C. 3465 D. 10,395
Mathematics