Find the square root if it is a real number, or state that the expression is not a real number.
A. 4
B. 256
C. 
D. not a real number
Answer: D
Mathematics
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Use a truth table to determine whether the symbolic form of the argument is valid or invalid.q ? pp ? r----? r ? q
A. 
Symbolic argument is valid.
B. 
Symbolic argument is valid.
C. 
Symbolic argument is invalid.
D. 
Symbolic argument is invalid.
Mathematics
Find the domain of the function.
Mathematics
Let v and w be two vectors in the plane with given magnitudes. The angle between v and w is ?. Find the expression. Round the answer to the nearest tenth.
= 6, 
= 15, ? = 44°
Find 
A. 11.5 B. 19.8 C. -108.5 D. 16.2
Mathematics
Use both the addition and multiplication properties of inequality to solve the inequality. Graph the solution set on a number line.11 - 3(3 - x) ? -1
A. [-1, ?)
B. (-?, -1]
C. (-?, 0]
D. (-?, -1)
Mathematics