Find the general solution of the equation. Express the solution explicitly as a function of the independent variable.y'(t)csc t = ey/3
A. y = - 
ln
+ C
B. y = 3 ln
C. y = 
ln
+ C
D. y = -3 ln
Answer: D
Mathematics
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If r(t) is the position vector of a particle in the plane at time t, find the indicated vector.Find the velocity vector.r(t) = (2t2 + 17)i + 
j
A. v = 
i + (4t)j
B. v = (4t)i + 
j
C. v = (4t)i - 
j
D. v = (4)i + 
j
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Plot the point whose polar coordinates are given.(4, ?/2)
A. 
B. 
C. 
D. 
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Use addition of y-coordinates to sketch the graph of the function between 
and 
.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
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Solve.A tortoise traveled 0.37 miles in 2.5 hours. What is the rate in miles per hour?
A. 6.757 mph B. 0.248 mph C. 0.925 mph D. 0.148 mph
Mathematics