Simplify. Assume that all variables represent any real number.
A. -
B. x - 2
C. 
D. -x + 2
Answer: C
Mathematics
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Determine whether the argument is valid or invalid.All women are wealthy. Amanda is a woman. Therefore, Amanda is wealthy.
A. Invalid B. Valid
Mathematics
Simplify the radical. Assume that all variables represent positive numbers.
A. 
B. 
C. 
D. 
Mathematics
Solve the equation for the indicated variable.d = rt, for r
A. r = d - t
B. r = 
C. r = 
D. r = dt
Mathematics
Solve and graph. Write the result in interval notation.
x ? 3
A. (?, 3]
B. [8, ?)
C. [3, ?)
D. (?, 8]
Mathematics