Find a polar equation of the conic with a focus at the pole and the given eccentricity and directrix.e = 4, r = 5 csc ?
A. r = 
B. r = 
C. r = 
D. r = 
Answer: B
Mathematics
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Evaluate the integral.
A. 
?
B. 
?
C. 
?
D. 
?
Mathematics
Subtract in the indicated base.
A. 327nine B. 237nine C. 238nine D. 227nine
Mathematics
Solve the system.
A. (0, 10) B. (4, 2), (-4, 2) C. (2, 4) D. (4, 2)
Mathematics
Find the center, foci, and vertices of the ellipse.
+ 
= 1
A. center at (0, 0)
foci at (0, - 
) and (0, 
)
vertices at (0, -4), (0, 4)
B. center at (0, 0)
foci at (0, -4) and (0, 4)
vertices at (0, -16), (0, 16)
C. center at (0, 0)
foci at (0, 4) and (3, 0)
vertices at (0, 16), (9, 0)
D. center at (0, 0)
foci at (- 
, 0) and (
, 0)
vertices at (-4, 0), (4, 0)
Mathematics