A cloth fragment is found in an ancient tomb. It contains 70% of the carbon-14 (half-life is 5700 years) that it is assumed to have had initially. How old is the cloth? Round your answer to the nearest integer.
?
A. 2,840 years
B. 2,645 years
C. 2,933 years
D. 2,727 years
E. 3,040 years
Answer: C
Mathematics
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Construct a truth table for the statement.~(p ? q) ? (p ? ~q)
A. 
| T | T | T |
| T | F | F |
| F | T | F |
| F | F | F |
B.
| T | T | T |
| T | F | F |
| F | T | F |
| F | F | T |
C.
| T | T | T |
| T | F | T |
| F | T | T |
| F | F | T |
D.
| T | T | T |
| T | F | F |
| F | T | T |
| F | F | T |
Mathematics
Using Green's Theorem, compute the counterclockwise circulation of F around the closed curve C.F = (-8x + 3y)i + (7x - 10y)j; C is the region bounded above by y = -3x2 + 150 and below by 
in the first quadrant
A. - 2450 B. 4410 C. -2980 D. 2000
Mathematics
Simplify the expression.(-7)3
A. -21 B. 21 C. -343 D. 343
Mathematics
Determine the quotient.132 ÷ 1
A. Undefined B. 1 C. 132 D. 0
Mathematics