Find the vertices and foci of the given ellipse.
+ 
= 1
A. Vertices: (0, 9) and (0, -9);
Foci: (0, 
) and (0, -
)
B. Vertices: (81, 0) and (-81, 0);
Foci: (9, 0) and (-9, 0)
C. Vertices: (9, 0)and (-9, 0);
Foci:(
, 0) and (-
, 0)
D. Vertices: (0, 16) and (0, -16);
Foci: (0, 4) and (0, -4)
Answer: C
Mathematics
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Calculate the derivative of the function. Then find the value of the derivative as specified.f(x) = 
; f '(0)
A. f '(x) = - 
; f '(0) = -2
B. f '(x) = - 8(x + 2)2; f '(0) = - 32
C. f '(x) = 8; f '(0) = 8
D. f '(x) = 
; f '(0) = 2
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A. -1 B. 0 C. Divergent D. 1
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Find the indicated matrix.Let A = [-3 2] and B = [1 0]. Find 2A + 3B.
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