Give all possible rational zeros for the polynomial.f(x) = -2x4 + 4x3 + 5x2 + 18
A. ±1, ±2, ± 
, ± 
, ± 
, ± 
, ± 
B. ±1, ± 
, ±2, ±3, ±6, ±9, ±18
C. ±1, ± 
, ±2, ±3, ± 
, ±6, ±9, ± 
, ±18
D. ±1, ±2, ±3, ±6, ±9, ±18
Answer: C
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Find the exact function value.sin-1
A. 
B. - 
C. - 
D. 
Find the vertices and foci of the given ellipse.
+ 
= 1
A. Vertices: (0, 4) and (0, -4);
Foci: (0, 2
) and (0, -2
)
B. Vertices: (0, 16) and (0, -16);
Foci: (0, 4) and (0, -4)
C. Vertices: (4, 0)and (-4, 0)
Foci: (2
, 0) and (-2
, 0)
D. Vertices: (0, 16), (4, 0);
Foci: (0, 4) and (2, 0)
Write the quotient in the standard form.
A. 
+ 
i
B. - 
+ 
i
C. 
- 
i
D. - 
+ 
i
Perform the indicated operations and write the resulting polynomial in descending order of degree.-(r4 - 5r2 + 5r + 3) - (3r4 - 6r3 - 8r - 2) + (-r4 + 2r3 + 6r2 + 3r - 2)
A. -5r4 + 8r3 + 11r2 + 6r - 3 B. -5r4 + 8r3 - 11r2 + 6r + 3 C. -5r4 + 8r3 + 11r2 + 16r - 3 D. -5r4 - 8r3 + 11r2 + 6r - 7