Solve the problem.An artifact is discovered at a certain site. If it has 56% of the carbon-14 it originally contained, what is the approximate age of the artifact? (carbon-14 decays at the rate of 0.012% annually.)
A. 3667 yr
B. 4667 yr
C. 2098 yr
D. 4832 yr
Answer: D
Mathematics
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Simplify.(-6)3
A. -216 B. -18 C. 18 D. 216
Mathematics
Find the GCF.144 and 216
A. 24 B. 70 C. 36 D. 72
Mathematics
Write an equation for the piecewise function.
A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 
Mathematics
Solve the system of equations.x2 + y2 = 36x2 - y2 = 36
A. (0, 6), (0, -6) B. (6, 0) C. (6, 0), (-6, 0) D. (0, -6)
Mathematics