Find the center of the ellipse.
+ 
= 1
A. (0, 16)
B. (20, 16)
C. (0, 0)
D. (20, 0)
Answer: C
Mathematics
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Determine whether the argument is valid or invalid.If I hear that poem, it reminds me of my mother. If I get sentimental, then it does not remind me of my mother. I get sentimental. Therefore, I don't hear that poem.
A. Invalid B. Valid
Mathematics
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 = 
, y = 0, x = 7, x = 9
A. 30? B. 10? C. 20? D. 15?
Mathematics
Decompose into partial fractions.
A. 
+ 
B. 
- 
C. 
+ 
D. 
- 
Mathematics
Find the derivative of the function.y = x5ln x - 
x3
A. x5ln x - x2 + 5x4 B. 6x4 - x2 C. 5x4 - x2 D. x4 - x2 + 5x4ln x
Mathematics