Find the eccentricity of the ellipse.Find the eccentricity of an ellipse centered at the origin having a focus of (0, ) and corresponding directrix y =  

A.
B.
C.
D.


Answer: D

Mathematics

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Find an antiderivative of the given function.- 

A.
B. - 
C.
D.

Mathematics

Find the value of the determinant. 

A. 8 B. -8 C. 64 D. 4

Mathematics

Solve the problem.The voltage E in an electrical circuit is given by E = 5.9 cos 180?t, where t is time measured in seconds. Find the period.

A. 90
B.
C.
D. 90?

Mathematics

Simplify the rational expression. If the expression is already in simplest form, state this as your answer.

A.
B.
C.
D. simplest form

Mathematics