Find the standard form of the equation of the ellipse satisfying the given conditions.Center at (0, 0); Focus at (0, 4); Vertex at (0, 7)

A.  +  = 1
B.  +   = 1
C.  +  = 1
D.   +   = 1


Answer: A

Mathematics

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Simplify the difference quotients  and  for the following function. Rationalize the numerator when necessary.f(x) = 

A. - ; - 
B.
C.
D. - ; - 

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Provide an appropriate response.Use the calculator to find the approximate value of the root 211/2.

A. 4.582575695 B. 441 C. 2.140695143 D. 10.5

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Divide.

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Select the system of linear equations represented by the following augmented matrix. (Variables x, y, z, and w are used whenever applicable.) ? ?

A. ?
B. ?
C. ?
D. ?
E. ?

Mathematics