Evaluate the expression.-73
A. 21
B. -21
C. -343
D. 343
Answer: C
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. v (ft/sec)
When does the body reverse direction?
A. t = 4, t = 7 sec B. t = 7 sec C. t = 2, t = 3, t = 5, t = 6, t = 7 sec D. t = 4 sec
Mathematics
Solve by the most appropriate method.121x3 = x
A. 0, 
B. ± 
C. 0, ± 11
D. 0, ± 
Mathematics
Solve the rational inequality.3 + 
- 
? 0
A. (-?, -8] ? 
B. 
C. 
D. [-8, 0) ? 
Mathematics
Solve using elimination.
A. x = 3, y = 0; x = 3, y = 3 or (3, 0), (3, 3) B. x = 3, y = 0; x = -3, y = 0 or (3, 0), (-3, 0) C. x = 3, y = 3; x = -3, y = 3 or (3, 3), (-3, 3) D. x = -3, y = 0; x = -3, y = 3 or (-3, 0), (-3, 3)
Mathematics