Find the vertices and foci of the given ellipse.9x2 + 4y2 = 36
A. Vertices: (0, 9) and (4, 0);
Foci: (0, 3) and (2, 0)
B. Vertices: (0, 3) and (0, -3);
Foci: (0, 
) and (0, -
)
C. Vertices: (3, 0), (-3, 0);
Foci: (
, 0) and (-
, 0)
D. Vertices: (0, 9) and (0, -9);
Foci: (0, 3) and (0, -3)
Answer: B
Mathematics
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if 
.
A. 
?
B. 
?
C. 3?
D. 5?
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A. (11, -4) B. (-5, 1) C. (-5, 16) D. (13, -2)
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Rewrite the expression as the sine, cosine, or tangent of a double angle. Then find the exact value of the trigonometric expression without the use of a calculator.
A. - 
B. 
C. -
D. 
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Find the difference.6.507 - 5.397
A. 11.904 B. 10.904 C. 1.110 D. 1.21
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