Evaluate the limit by direct evaluation. Change the form of the function where necessary.
A. Does not exist
B. 3
C. 5
D. 0
Answer: C
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Solve the problem.Suppose that the revenue from selling x radios is r(x) = 75x - 
dollars. Use the function r '(x) to estimate the increase in revenue that will result from increasing production from 125 radios to 126 radios per week.
A. $50.00 B. $100.00 C. $49.80 D. $62.50
Provide an appropriate response. Combine the complex numbers: (7 - i) + (-3 + 4i)
A. 6 + i B. -10 - 5i C. 4 - 3i D. 4 + 3i
Solve the problem. Round to the nearest hundredth, if necessary.The perimeter of a rectangular room is 66 ft. The width is 13 ft. Find the length.
A. 19 ft B. 21 ft C. 53 ft D. 20 ft
Add or subtract.(9m2n - 2mn + 4mn2) - (5m2n + 2mn - 6mn2)
A. 4m4n2 - 4m2n2 + 10m2n4 B. 4m4n2 - 4mn + 10m2n4 C. 4m2n + 6 D. 4m2n - 4mn + 10mn2