Tests of an artifact discovered at the Debert site in Nova Scotia show that 25% of the original 14 C is still present. What is the probable age of the artifact? (Use r = -1.20968 ´ 10-4 )
?
A. 4,977 yr old
B. 11,460 yr old
C. 10,487 yr old
D. 11,082 yr old
E. 10,931 yr old
Answer: B
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Find the domain and range of the inverse of the given function.f(x) = 
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Find all specified roots.Cube roots of 1.
A. 1, - 
+ 
i, - 
- 
i
B. -1, 1
C. 1, 
+ 
i, - 
+ 
i
D. 1, 
- 
i, - 
- 
i
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