Find the standard-form equation of the ellipse centered at the origin and satisfying the given conditions.An ellipse with vertices (0, ±7) and foci (0, ±3)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: C
Mathematics
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Use a CAS to plot the function near the point x0 being approached. From your plot guess the value of the limit.
A. 
B. 
C. 
D. 64
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Multiply the monomials.2x7 ? 9x8
A. 36x15 B. 11x15 C. 18x56 D. 18x15
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Find the horizontal asymptote, if any, of the rational function.f(x) = 
A. y = 0 B. y = -1 C. y = 1 D. None
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Determine the real solutions to the system of nonlinear equations.6x2 + 2y2 = 50y = x + 5
A. (0, 5), 
B. (0, -5), 
C. (0, 5), 
D. (0, -5), 
Mathematics