Provide an appropriate response.Find the sum of the series 
by expressing 
as a geometric series, differentiating both sides of the resulting equation with respect to x, and replacing x by 
.
A. 
B. 
C. 
D. 
Answer: B
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Use a linear approximation to estimate the quantity to four decimal places.
A. 1.0000 B. 5.4000 C. 4.6000 D. 4.2000
Solve the problem.At a certain baseball diamond, the distance from home plate through the pitcher's rubber to the far wall (i.e., to dead center) is 416 feet. Given that the infield forms a square 90 feet on each side, how far is it from third base to dead center. Round your answer to the nearest tenth.
A. 483.8 ft B. 455.7 ft C. 358.1 ft D. 393.3 ft
Round the whole number to the given place value.84,999, tens
A. 85,000 B. 84,000 C. 84,900 D. 84,990
Solve the problem.Conservationists tagged 70 black-nosed rabbits in a national forest in 2009. In 2012, they tagged 140 black-nosed rabbits in the same range. If the rabbit population follows the exponential law, how many rabbits will be in the range 7 years from 2009?
A. 706 rabbits B. 353 rabbits C. 188 rabbits D. 94 rabbits