Use the differential to find a decimal approximation of the radical expression. Round to four decimal places.
A. 2.1833
B. 2.0833
C. 2.2833
D. 1.9833
Answer: B
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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. 1.7 hr B. 0.4 hr C. 2.3 hr D. 1.2 hr
Determine if the sequence is decreasing or nondecreasing and if it is bounded or unbounded from above.an = 
A. Nondecreasing; unbounded B. Nondecreasing; bounded C. Decreasing; bounded D. Decreasing; unbounded
Solve the equation for the specified variable.
= 
for P
A. P = 
B. P = 
C. P = 
D. P = 
Factor completely.a3 - b3
A. (a - b)(a2 - ab + b2) B. (a + b)(a2 - ab + b2) C. (a - b)(a2 + ab + b2) D. (a + b)(a2 + ab + b2)