The equation represents a conic section in polar form. Identify the conic section, the position of the directrix, and the distance between the focus and the directrix.r = 
A. hyperbola, directrix perpendicular to the polar axis located 1 unit(s) left of the pole
B. ellipse, directrix perpendicular to the polar axis located 1 unit(s) left of the pole
C. hyperbola, directrix perpendicular to the polar axis located 1 unit(s) right of the pole
D. ellipse, directrix perpendicular to the polar axis located 1 unit(s) right of the pole
Answer: A
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Solve the differential equation.
= 4x3e-y
A. y = x4 + C B. y = ln (x4 + C) C. y = ln (4x4 + C) D. y = C ln (x4)
Find the probability.In a certain college, 33% of the physics majors are ethnic minorities. A random sample of 10 physics majors is chosen. Find the probability that 2 or less are ethnic minorities. Round to the nearest ten-thousandth.
A. 0.1080 B. 0.1990 C. 0.2888 D. 0.3070
Use the power rules for exponents to simplify. Write the answer in exponential form.
5
A. 520 B. 59 C. 259 D. 2520
Match the function to its graph.y = tan (x + ?)
A. 
B. 
C. 
D. 