The sides in the pair of figures are proportional. Find the missing length(s).
Give your answers as mixed numbers if appropriate.
A. x = 
, y = 
B. x = 
, y = 
C. x = 
, y = 
D. x = 
, y = 
Answer: B
Mathematics
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Find the volume of the solid generated by revolving the region about the given axis. Use the shell or washer method.The region bounded by y = 4
, y = 4, and x = 0 about the line y = 4
A. 
?
B. 
?
C. 
?
D. 8?
Mathematics
Give an appropriate answer.Show that the function r(?) = 3 cot ? + 
+ 7 has exactly one zero on the interval (0, ?).
What will be an ideal response?
Mathematics
If r(t) is the position vector of a particle in the plane at time t, find the indicated vector.
Find the velocity vector of the particle.
A. v(t) = (-8)i + 
j
B. v(t) = 
i + (-8t)j
C. v(t) = (-8t)i - 
j
D. v(t) = (-8t)i + 
j
Mathematics
Simplify the rational expression.
A. 
B. 
C. 
D. 
Mathematics