Solve the problem.The amount of alcohol in the bloodstream, A, declines at a rate proportional to the amount, that is, 
. If 
for a particular person, how long will it take for his alcohol concentration to decrease from 0.10% to 0.05%? Give your answer to the nearest tenth of an hour.
A. 2.6 hr
B. 1.7 hr
C. 0.3 hr
D. 3.5 hr
Answer: B
Mathematics
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Solve the problem.Use a Taylor series to estimate the integral's value to within an error of magnitude less than 10-3.
A. 0.4816 B. 0.09758 C. 0.2845 D. 0.1974
Mathematics
Express the sentence as a single numerical expression. Then use the order of operations to simplify the expression.Subtract 13 from 11. Multiply this difference by 3. Raise this product to the fourth power.
A. -216 B. -1296 C. 1296 D. 81
Mathematics
Solve the equation.
+ 1 = x
A. 
B. 
C. 
D. ?
Mathematics
Solve the linear equation.3(c - 6) = 4c - 5
A. 13 B. -4 C. 4 D. -13
Mathematics