Find the standard-form equation of the ellipse centered at the origin and satisfying the given conditions.An ellipse with vertices (0, ±9) and foci at 
.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: B
Mathematics
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A. 240 sq m B. 2,294 sq m C. 2,304 sq m D. 2,314 sq m
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A. 0.00596 B. 0.000596 C. 596 D. 0.0000596
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A vector v has initial point P and terminal point Q. Find the magnitude of 
.P(6, -10), Q(-1, 12)
A. 
B. 533
C. 15
D. 
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Graph the function.f(x) = 4x4 - x3 + 3x2 + 3x + 1
A. 
B. 
C. 
D. 
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