Add or subtract as indicated. Express the answer as a single polynomial in standard form.(9x2 + 5x + 2) + (2x2 - 3x + 8)
A. 11x2 - 2x + 10
B. 4x2 + 6x + 13
C. 11x2 + 2x + 10
D. 11x2 + 2x - 10
Answer: C
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Find the volume of the solid generated by revolving the region about the y-axis.The region enclosed by x = 2tan 
, x = 0, y = - 
A. 6? - 
?2
B. 12 - 3?
C. 3? + 3?2
D. 12? - 3?2
Use a grapher to graph the function.The charge y on a certain capacitor as a function of time is given by 
Charge is measured in coulombs, and time is measured in seconds. Sketch two cycles of y as a function of t. Label the point on the horizontal axis which represents the end of the second cycle.
A. 
B. 
C. 
D. 
Add or subtract as indicated.-0.193 - (-0.7874)
A. 0.6044 B. 0.5944 C. 0.5934 D. 0.6944
Provide an appropriate response.The total cost for a product is given by C(x) = 36 + 5 ln(3x + 9). Find the rate of change of C''(x).
What will be an ideal response?