Find the foci of the ellipse whose equation is given.9(x - 2)2 + 16(y + 2)2 = 144
A. foci at (- 
, -2) and (
, -2)
B. foci at (2 + 
, -2) and (2 - 
, -2)
C. foci at (-2 + 
, 2) and (-2 - 
, 2)
D. foci at (2 + 
, 2) and (2 - 
, 2)
Answer: B
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Use a graphing calculator or computer to determine which of the given viewing windows displays the most appropriate graph of the specified function.f(x) = x3 - 2x2 - 3x + 10
A. [-20, 20] by [-100, 100] B. [-5, 25] by [-5, 5] C. [-5, 5] by [-5, 25] D. [-2, 2] by [-10, 10]
Find the quadratic approximation of f at x = 0.f(x) = x
A. Q(x) = 100x2 B. Q(x) = 1 - 10x C. Q(x) = 1 + 10x D. Q(x) = 10x
Use either the binomial theorem or Pascal's Triangle to expand the binomial.(6 - x)5
A. 7776 - 1296x + 216x2 - 36x3 + 6x4 - x5 B. 7776x - 6480x2 + 2160x3 - 360x4 + 30x5 C. 7776 - 6480x + 2160x2 - 360x3 + 30x4 - x5 D. 1 - 5x +10x2 - 10x3 + 5x4 - x5
Write the satement in symbols. Let x represent the unknown number.One-half a number, minus ten, plus two times the number.
A. 
x - 10 + 2x
B. 
x - 8
C. 
x - 5
D. 
x - 10