A cloth fragment is found in an ancient tomb. It contains 63% 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 hundred years.
?
__________ yr
Fill in the blank(s) with the appropriate word(s).
3,800
Mathematics
You might also like to view...
Plot the point whose polar coordinates are given.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.How long would it take to drive a distance of 15 miles if you drive at a constant speed of 45 miles per hour? Round your answer to the nearest hundredth if necessary.(Distance = Speed × Time)
A. 3.33 hours B. 0.33 hours C. 675.0 hours D. 3.00 hours
Mathematics
Use the distributive property to write without parentheses.- (2n + 7w + 7g)
A. 2n - 7w + 7g B. -2n - 7w - 7g C. 2n + 7w + 7g D. -2n - 7w + 7g
Mathematics
Use the laws of exponents to simplify. Write the answer with positive exponents.(r1/4 ? s1/4)2
A. r2s2 B. r1/8s1/8 C. r1/2s1/2 D. r1/16s1/16
Mathematics