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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Find the least common denominator.
, 
A. t(t - 3) B. t - 3 C. 81 D. t
Mathematics
Evaluate.-5 - (-5)
A. -5 B. 0 C. 5 D. 1
Mathematics
Solve the equation. If an answer is not exact, give the answer to four decimal places.
?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Divide and, if possible, simplify.
A. 3x
B. 3x10
C. x
D. 3x
Mathematics