Compute, rounding to the nearest tenth.
A. 2.7
B. 270.0
C. 0.3
D. 27.0
Answer: A
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Discuss the equation and graph it.r = 
A. hyperbola, directrix perpendicular to
the polar axis 
unit right of the pole
vertices (
, 0), (- 
, ?)
B. ellipse, directrix perpendicular to
the polar axis 
unit left of the pole
vertices (
, 0), (
, ?)
C. ellipse, directrix parallel to
the polar axis 
unit below the pole
vertices (
, 
), (
, 
)
D. hyperbola; directrix parallel to
the polar axis 
unit above the pole
vertices (
, 
), (- 
, 
)
Factor when possible. If the polynomial is prime, say so.3x - 40 + x2
A. (x - 8)(x + 1) B. (x - 8)(x + 5) C. (x + 8)(x - 5) D. prime
Graph the ellipse and locate the foci.9x2 + 4y2 = 36
A. foci at (2
, 0) and (-2
, 0)
B. foci at (
, 0) and (-
, 0)
C. foci at (0, 
) and (0, -
)
D. foci at (
, 0) and (-
, 0)
Find the amplitude, period, or phase shift of the given function as requested.Find the phase shift of y = -4 sin
A. 4
B. -4
C. - 
D. 