Solve the problem.In an aerobic exercise machine, weights are lifted and a person's hands are constrained to move along arcs of the ellipse 
If the person's hands move upward at 0.2 m/s and start at 
at what velocity is each moving after 2.5 s? Find the magnitude and direction of the velocity.
A. 0.27 m/s, 108°
B. 0.21 m/s, 108°
C. 0.21m/s, 72°
D. 0.27 m/s, 72°
Answer: B
Mathematics
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Solve the problem.Which is the better buy: one yard of ribbon for $0.61 or three feet of ribbon at $0.22 per foot.
A. Three feet B. One yard C. Equal value D. Not enough information
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Divide, if possible. If the quotient is undefined, then state this.
A. Undefined B. 1 C. 0 D. 2
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Find the expression.u = 
, v = 
Find u - v
A. 
B. 
C. 
D. 
Mathematics
Add or subtract as indicated.5
+ 
- 4
A. 
B. 
C. 
+ 
D. 9
+ 
Mathematics