Solve the given problem by using Laplace transforms.A constant force of 6 lb moves a 5-slug mass through a medium that resists the motion with a force equal to 20v, where v is the velocity. The differential equation relating velocity to time is 
Find v as a function of t if the object starts from rest.
A. v = 6
B. v = 
C. v = 
D. v = 
Answer: C
Mathematics
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Graph the function.
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?
A. ?
B. ?
C. ?
D. ?
Mathematics
Add. Simplify, if possible.
+ 
A. 
B. 
C. 
D. 
Mathematics
Identify the pair of lines as parallel, perpendicular, or intersecting.
A. Perpendicular B. Parallel C. Intersecting
Mathematics
Solve. x + 2y + 2z = 10 3y + 3z = 21 z = 2
A. {(-4, 5, 2)} B. {(-4, 2, 5)} C. {(2, -4, 5)} D. {(2, 5, -4)}
Mathematics