Solve.
= -11
A. {11}
B. {-11}
C. {11, -11}
D. ?
Answer: D
Mathematics
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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.169s2 - 25t4
A. (13s + 5t2)(13s - 5t2) B. (13s + 5t2)2 C. (169s + t2)(s - 25t2) D. (13s - 5t2)2
Mathematics
Solve the problem.One side of a rectangle is 5 inches and the other side is x inches. What values of x will make the perimeter at least 38?
A. x < 14 B. x ? 14 C. 0 < x ? 14 D. x ? 14
Mathematics
Perform the indicated operation. Simplify if possible.
- 
+ 
A. 
B. 
C. 
D. 
Mathematics