Determine the domain of the variable x in the expression.f(x) = 
A. {x|x ? 0}
B. {x|x ? -9}
C. {x|x ? 9}
D. all positive real numbers
Answer: B
Mathematics
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A. 
B. 
C. 
D. 
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Find the LCD. Do not combine fractions.
, 
A. 24x2y5 B. 24x3y3 C. 24xy D. 24x3y5
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Find ?y and f '(x) ?x for the given function.y = f(x) = 
, x = 5, and ?x = 0.05
A. 0.01118; 0.01118 B. 0.01115; 0.01118 C. 0.01115; 0.01115 D. 0.01115; 0.02236
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Suppose the position of an object moving in a straight line is given by the specified function. Find the instantaneous velocity at time t.s(t) = t3 + 4t + 3, t = 4
A. 52 B. 12 C. 55 D. 16
Mathematics