Solve the problem.Find the coordinates of the foci of the ellipse that is the intersection of z = 
+ 
with the plane z = 7.
A. (0, ±7, 7)
B. (0, ±
, 7)
C. (0, ±35, 7)
D. (0, 0, 7)
Answer: B
Mathematics
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Find the volume of the indicated region.The region bounded by 
and the xy-plane
A. 
?
B. 2500?
C. 5000?
D. 
?
Mathematics
Solve the problem.Ron can mow the lawn in two hours more time than Paul. Working together they can mow the lawn in 5 hours. How long does it take each of them working alone?
A. Paul: 9.1 hr Ron: 11.1 hr B. Paul: 10 hr Ron: 12 hr C. Paul: 8.3 hr Ron: 10.3 hr D. Paul: 8 hr Ron: 10 hr
Mathematics
Write the partial fraction decomposition of the rational expression.
A. 
- 
B. 
+ 
C. 
- 
D. 
- 
Mathematics
Determine whether the graph of the equation is symmetric with respect to the x-axis, the y-axis, and/or the origin.y = 
A. y-axis B. origin C. x-axis D. x-axis, y-axis, origin E. none
Mathematics