Solve the problem.Find a unit vector perpendicular to plane PQR determined by the points P(-3, 1, 4), 
and 
A. ± 
B. ± 
C. ± 
D. ± 
Answer: B
Mathematics
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Decide whether the statement is true or false.At least one irrational number is not an integer.
A. True B. False
Mathematics
Solve the problem.During an intramural basketball game, Team A scored 12 fewer points than Team B. Together, both teams scored a total of 150 points. How many points did Team A score during the game?
A. 69 points B. 75 points C. 70 points D. 81 points
Mathematics
Translate the phrase into an expression involving addition, then simplify.-54 added to 16
A. 70 B. 38 C. -70 D. -38
Mathematics
Solve the system by the elimination method.7x = 8y + 77x = 8y - 6
A. ?
B. 
C. {(8, 7)}
D. 
Mathematics