Evaluate -(-x) for the given value of x.x = - 
A. 
B. 44
C. -44
D. - 
Answer: D
Mathematics
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The figure shows the velocity v or position s of a body moving along a coordinate line as a function of time t . Use the figure to answer the question. s (m)
When is the body moving forward?
A. 0 < t < 1, 3 < t < 4, 5 < t < 7 B. 0 < t < 3, 3 < t < 5, 5 < t < 8 C. 0 < t < 8 D. 0 < t < 1, 3 < t < 4, 5 < t < 7, 9 < t < 10
Mathematics
Use the vectors u, v, and w in the accompanying figure to graph the vector. 
z - v
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation. Simplify if possible.
+ 
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation.15 tons 1187 lb + 3 tons 1703 lb
A. 18 tons 890 lb B. 12 tons 1484 lb C. 11 tons 1484 lb D. 19 tons 890 lb
Mathematics