Find an equation for the ellipse described.Vertices at (-4, 5) and (12, 5); focus at (10, 5)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
- 
= 1
Answer: C
Mathematics
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Calculate the flux of the field F across the closed plane curve C.F = xi + yj; the curve C is the counterclockwise path around the circle x2 + y2 = 16
A. 0 B. 32? C. 8? D. 64?
Mathematics
Factor.343p3 - 1
A. (343p - 1)(p2 + 7p + 1) B. (7p + 1)(49p2 - 7p + 1) C. (7p - 1)(49p2 + 1) D. (7p - 1)(49p2 + 7p + 1)
Mathematics
Suppose that the production function for a product is 
, where x represents the number of work hours and y represents the available capital (per week). Find the marginal productivity of y.
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Evaluate.13 - (-16) + 19
A. 16 B. 22 C. -22 D. 48
Mathematics