Graph the ellipse and locate the foci.
+ 
= 1 
A. foci at (0, 
) and (0, -
)
B. foci at (2
, 0) and (-2
, 0)
C. foci at (0, 2
) and (0, -2
)
D. foci at (
, 0) and (-
, 0)
Answer: A
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A. 43.7 mpg B. 39 mpg C. 4.7 mpg D. 50 mpg
Find a rectangular equation for the plane curve defined by the parametric equations.x = 3 tan t, y = 4 sec t; 0 ? t ? 2?
A. y = x2 - 9; for x in -3 ? x ? 3
B. 
+ 
= 1; for x in -? < x < ?
C. 
- 
= 1; for x in -? < x < ?
D. y = 4
; for x in -? < x < ?
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Inequality: 2(x + 7) < 8
A. True B. False
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