Solve.The daily number of requests, f(x), for a song that a local radio station receives can be modeled by the formula
, where x is the number of days after the song has been released. During which time period will the daily number of requests be below 6?
A. between day 1 and day 3
B. between day 3 and day 4
C. between day 1 and day 4
D. between day 2 and day 6
Answer: C
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Suppose u and v are differentiable functions of x. Use the given values of the functions and their derivatives to find the value of the indicated derivative.u(2) = 9, u '(2) = 3, v(2) = -1, v '(2) = -4.
(3v - u) at x = 2
A. -15 B. -9 C. 6 D. -12
Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the y-axis.y = 18 - x2, y = x2, x = 0
A. 
?
B. 81?
C. 
?
D. 162?
Provide an appropriate response.Perform the indicated operation, rationalize denominator, and simplify if possible: 
Fill in the blank(s) with the appropriate word(s).
Divide. Express your answer in standard form.
A. 
+ 
i
B. - 
- 
i
C. 
- 
i
D. - 
+ 
i