Find a polar equation for the conic. A focus is at the pole.e = 5; directrix is perpendicular to the polar axis 4 to the right of the pole
A. r = 
B. r = 
C. r = 
D. r = 
Answer: C
Mathematics
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Write the expression in the form a + bi, where a and b are real numbers.
(
+ 
)
A. 10 - 20i B. 20 + 10i C. -20 - 10i D. -10 + 20i
Mathematics
Determine whether the graph of the polynomial has y-axis symmetry, origin symmetry, or neither.x5 - 30x3 + 125x = 0
A. origin symmetry B. y-axis symmetry C. neither
Mathematics
Find the indicated term of the binomial expansion.(4x - 2y)9; term containing y6
A. -172,032xy6 B. 86,016x3y6 C. 344,064x3y6 D. -172,032x3y6
Mathematics
Write a general formula to describe the variation.The centrifugal force F of an object speeding around a circular course varies directly as the product of the object's mass m and the square of it's velocity v and inversely as the radius of the turn r.
A. F = 
B. F = 
C. F = 
D. F = 
Mathematics