Simplify.
A. 
B. 
C. 
D. - 
Answer: A
Mathematics
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The equation gives the position s = f(t) of a body moving on a coordinate line (s in meters, t in seconds).s = 5 sin t - cos tFind the body's jerk at time t = ?/4 sec.
A. - 2
m/sec3
B. 3
m/sec3
C. - 3
m/sec3
D. 2
m/sec3
Mathematics
Solve the problem.A spring with a spring constant k of 70 pounds per foot is loaded with a 4-pound weight and allowed to reach equilibrium. It is then stretched an additional 6 inches and released. Find the equation of motion. Neglect friction.
A. y = 
cos 4.183t
B. y = 6 sin 23.664t
C. y = 
cos 23.664t
D. y = 6 sin 4.183t
Mathematics
Factor completely.r2+ 10r + 25
A. (r + 5)(r - 5) B. (r + 5)2 C. (r + 10)(r - 10) D. (r - 5)2
Mathematics
Combine into a single logarithm.  figure 1.png)
 figure 2.png)
Mathematics