Multiply and simplify.
? 
A. 1
B. 
C. -1
D. 0
Answer: A
Mathematics
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Solve the problem.Find the area of the shaded region. Express the answer in terms of ?. 
A. 
? - 9 square units
B. 
?- 9 square units
C. 3?- 3 square units
D. 9 square units
Mathematics
Solve the rational inequality.
< x
A. (4, 7) B. (0, 4) ? (7, ?) C. (-?, 4) ? (7, ?) D. (7, ?)
Mathematics
Solve by the substitution method. x + y = 64x + 4y = 24
A. ? B. {(x, y)| x + y = 6} C. {(0, 0)} D. {(7, -1)}
Mathematics
Express the angular speed in radians per second.60 revolutions per second
A. 60? radians per second B. 120 radians per second C. 120? radians per second D. 60 radians per second
Mathematics