Solve the problem.The half-life of carbon-14 is 5700 years. Find the age of a sample in which 8% of the radioactive nuclei originally present have decayed.
Fill in the blank(s) with the appropriate word(s).
686 years
Mathematics
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Write an equivalent double integral with the order of integration reversed.
A. 
B. 
C. 
D. 
Mathematics
Add the numbers using the number line.-4 + 0 
A. -40 B. 4 C. 0 D. -4
Mathematics
Solve the quadratic inequality if possible. Round your answer to the nearest tenth, if necessary.x2 - 6 ? -70
A. -8 ? x ? 8 B. x ? -8 or x ? 8 C. No real number satisfies this inequality. D. x ? 8
Mathematics
Find sum of the pair of complex numbers.-9i, -4i
A. -13i B. -4 - 9i C. -9 - 4i D. -13
Mathematics