Evaluate the expression.(9 ? 7 - 21 ÷ 7)0
A. 1
B. 0
C. 66
D. 60
Answer: A
Mathematics
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Use DeMorgan's laws or a truth table to determine whether the two statements are equivalent.~(~p ? q), p ? ~q
A. Not equivalent B. Equivalent
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Sketch an angle ? in standard position such that ? has the least positive measure and the given point is on the terminal side of ?.(-5, -3) 
A. 
B. 
C. 
D. 
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Subtract.5.908 - (-0.42)
A. 2.481 B. 5.488 C. 6.328 D. 6.428
Mathematics
Solve the equation using the Multiplication Property of Equality.- 
a = 0
A. {1} B. {14} C. {0} D. {-14}
Mathematics