Add or subtract as indicated. Write the answer in simplest form.5 - 
A. 
B. 
C. 
D. 
Answer: C
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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.
Write the set as indicated.Write the odd natural numbers less than 39 using set-builder notation.
A. {x ? N?x ? 37 and x is odd} B. {x ? N?x ? 39 and x is odd} C. {x ? N?x < 39} D. {x ? N?x < 38}
Write the phrase as a mathematical expression. Use x as the variable.One-third of a number added to the difference of the number and 6
A. 
B. 
x + (x - 6)
C. 
x + (6 - x)
D. 
Simplify the radical. Indicate if the radical is not a real number. Assume that x represents a positive real number.
A. 3 B. 4 C. ±2 D. 2