Provide an appropriate response.Assume a is positive, b is negative, and c is positive for the expressiona + ( b ? c)Tell whether the value of the given expression is positive, negative or cannot be determined.
A. Positive
B. Cannot be determined
C. Negative
Answer: B
Mathematics
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Provide an appropriate response.If the series 
is integrated term by term, for what value(s) of x does the new series converge?
A. 7 ? x < 9 B. 7 < x < 9 C. 7 ? x ? 9 D. 7 < x ? 9
Mathematics
Simplify.
A. 
B. 
C. 1 - a2
D. 1
Mathematics
The polynomial is given in one of the three forms: standard, root, or factored. Change it to the specified form. f(x) = 7(x + 4)
; write in factored form
A. f(x) = (x + 4)(7x - 8)
B. f(x) = (x + 4)(8x - 7)
C. f(x) = 
(x + 4)(7x - 8)
D. f(x) = 7(x + 4)(7x - 8)
Mathematics
Solve the problem.Susan has been working on a job that will require 45 hours to complete. If she has completed 
of the job, how many hours has she worked?
A. 40 hours
B. 20 hours
C. 5 hours
D. 4
hours
Mathematics