Solve the problem.One method to determine the time since an animal died is to estimate the percentage of 
remaining in its bones. The percent P in decimal form of 
remaining x years is given by 
Approximate (to the nearest whole year) the age of a fossil if there is 58% of 
remaining.
A. 4502 yr
B. -33,557 yr
C. 1955 yr
D. -14,528 yr
Answer: A
Mathematics
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Express the given quantity in terms of sin x or cos x.sin (2? - x)
A. sin x B. cos x - sin x C. sin (-x) D. -sin x
Mathematics
Decide whether the given set of numbers is a group under the given operation.Natural numbers; addition
A. Yes B. No
Mathematics
In chemistry the formula of pH is pH=-log[H+] qhere H+ is the concentration of the hydrogen ions. A mixture of acetic acid has a pH of 2.9. Find the concentration of hydrogen ions in the mixture.
What will be an ideal response?
Mathematics
Solve the problem.Find the area of the shaded region. Express the answer in teems of ?. 
A. 3? square units
B. 
? square units
C. 
square units
D. 
? square units
Mathematics