Find the domain of the composite function f ? g.f(x) = 
; g(x) = 
A. all real numbers
B. {x | x ? 2}
C. 
D. {x| x ? 2}
Answer: C
Mathematics
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Use set notation to list all the elements of the set.The whole numbers greater than 3 and less than 7
A. {3, 4, 5, 6, 7} B. {4, 5, 6} C. {3, 4, 5, 6} D. {4, 5, 6, 7}
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Find an equation of the line described. Through (-7, -1), parallel to the x-axis
A. x = -1 B. y = -7 C. y = -1 D. y = -7x - 1
Mathematics
State whether the given pair of expressions are like terms. If they are like terms, add them.-5ab2, 19a2b
A. No B. Yes; 14a3b3 C. Yes; 14ab2 D. Yes; -24a2b
Mathematics
Solve the problem.The decay of 846 mg of an isotope is given by 
where t is time in years. Find the amount left after 55 years.
A. 149 B. 830 C. 298 D. 292
Mathematics