Perform the indicated operation and reduce the answer to lowest terms.
- 
A. 
B. 
C. 
D. 
Answer: D
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Find the values of x for which the geometric series converges.
A. 3 < x < 13 B. -3 < x < 13 C. -9 < x < 9 D. 1 < x < 9
Solve the problem.Suppose that the revenue from selling x radios is r(x) = 60x - 
dollars. Use the function r '(x) to estimate the increase in revenue that will result from increasing production from 110 radios to 111 radios per week.
A. $38.00 B. $82.00 C. $49.00 D. $37.80
Find the double integral over the rectangular region R with the given boundaries.
R0 ? x ? 1, 0 ? y ? 1
A. 
(e6 - e5 - e - 1)
B. 
(e5 - e4 - e + 1)
C. 
(e6 - e5 - e + 1)
D. 
(e5 - e4 - e - 1)
Provide an appropriate response.What are the domain and range for the equation y = 2x?
A. Domain: (0, ?); range: (-?, ?) B. (-?, ?); range: [0, ?) C. Domain: (-?, ?); range: (0, ?) D. Domain: (-?, ?); range: (-?, ?)