Determine the domain of the variable x in the expression.f(x) = 
A. {x|x ? 0}
B. {x|x ? 6}
C. {x|x ? -6}
D. all real numbers
Answer: B
Mathematics
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Use the composition cancellation equations to decide whether or not the functions are inverses of each other.f(x) = 5x - 6 and g(x) = 
A. Yes B. No
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Determine whether the statement is true or false.The set of rational numbers is not a subset of the whole numbers.
A. False B. True
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In a right triangle, find the length of the side not given. Let c represent the length of the hypotenuse. Give an answer to the nearest tenth if necessary.a = 30 cm, c = 50 cm
A. b = 20 cm B. b = 10 cm C. b = 80 cm D. b = 40 cm
Mathematics