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: D

Mathematics

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Solve the problem.If  converges, what can be said about , where k is an integer greater than 1?

A. The series always converges. B. The series always diverges. C. The series may converge or diverge.

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Use the given information to find the exact value of the trigonometric function.cos ? = , csc ? > 0Find sin .

A.
B.
C.
D.

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Simplify.

A. 4 - a2
B.
C.
D.

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Identify the group of terms as like or unlike.15z, -10z

A. Unlike B. Like

Mathematics