Solve the system by graphing.
?
?
?
A. 
B. 
C. 
D. 
E. inconsistent
Answer: D
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Solve the problem.Assume the curl of a vector field F is zero. Can one automatically conclude that the circulation 
for all closed paths C? Explain or justify your answer.
What will be an ideal response?
Factor by any method.15x4 + 22x2 + 8
A. (3x2 + 1)(5x2 + 8) B. (3x2 + 2)(5x2 + 4) C. (5x2 - 4)(3x2 - 2) D. (15x2 + 2)(x2 + 4)
Find the foci and endpoints of each axis for the given ellipse.16x2 + y2 = 16
A. Foci: (0, ± 
); vertices: (0, ± 4);
endpoints of the minor axis: (± 1, 0)
B. Foci: (± 
, 0); vertices: (± 4, 0);
endpoints of the minor axis: (0, ± 2)
C. Foci: (0, ± 4); vertices: (0, ± 19);
endpoints of the minor axis: (± 4, 0)
D. Foci: (0 , ± 
); vertices: (0, ± 8);
endpoints of the minor axis: (± 1, 0)
Simplify.
7
A. 
B. 
C. x7y7
D. 