Provide an appropriate response.If 
of the telephone workers in a city are female, what percent are female?
A. 40%
B. 30%
C. 60%
D. 50%
Answer: A
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Use the Comparison Test to determine if the series converges or diverges.
A. diverges B. converges
Find the indicated vector.Let u = 
, v = 
. Find 
u + 
v.
A. 
B. 
C. 
D. 
Solve the problem.The average daily temperature T of a city in the United States is approximated by T = 55 - 23 cos 
(t -30)where t is in days, 1 ? t ? 365, and t = 1 corresponds to January 1. Find the period of T.
Fill in the blank(s) with the appropriate word(s).
Use the x-intercepts to find the intervals on which the graph of f is above and below the x-axis.f(x) = (x + 15)2
A. above the x-axis: (-?, -15), (-15, ?) below the x-axis: no intervals B. above the x-axis: no intervals below the x-axis: (-?, -15), (-15, ?) C. above the x-axis: (-15, ?) below the x-axis: (-?, -15) D. above the x-axis: (-?, -15) below the x-axis: (-15, ?)