Solve the problem.The amount of a radioactive substance present, in grams, at time t in months is given by the formula  Find the number of grams present in 3 years. If necessary, round to three decimal places.

A. 4.081
B. 3958.524
C. 395.852
D. 40.807


Answer: D

Mathematics

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Find the exact value of the expression.

A. -2
B. - 
C. -
D. - 

Mathematics

Solve the problem.Last month, a company sold 394 video games. This month, the company sold 400% of that amount. How many were sold this month?

A. 1576 B. 400 C. 15,760,000 D. 394

Mathematics

Round the number to the place indicated.Round to the nearest tenth: 12.956

A. 12.96 B. 12.9 C. 13.1 D. 13.0

Mathematics

Solve the problem.The rate of a continuous money flow starts at $500 and increases exponentially at 4% per year for 10 years. Find the present value if interest is earned at 8% compounded continuously.

A. $18,647.81 B. $6147.81 C. $20,879.00 D. $4121.00

Mathematics