Find the domain of f(x).f(x) = ?4x + 7?
A. {x? x is a real number and x ? -7}
B. ? the set of all real numbers
C. {x? x is a real number and x ? -0.5714286}
D. {x? x is a real number and x ? - 
}
Answer: B
Mathematics
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A. (2, 0)
B. 
C. (2, ?)
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Find the smallest positive value of t for which the output is 100 volts.
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Add.
+ 
A. - 
B. - 
C. 
D. - 
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