Find the domain of the composite function (f ? g)(x). Write the domain in interval notation.f(x) = 
, g(x) = 4x + 20
A. (-?, ?)
B. [0, ?)
C. (-?, -5] ? [0, ?)
D. [-5, ?)
Answer: D
Mathematics
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Use a calculator to approximate the root to the nearest thousandth.
A. 1.146 B. 1.127 C. 1.142 D. 1.114
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Solve the problem.How many ways can a president, vice-president, secretary, and treasurer be chosen from a club with 9 members? Assume that no member can hold more than one office.
A. 126 B. 3024 C. 36 D. 24
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Determine whether the given ordered pair is a solution of the system.(-5, 4)x + y = 9x - y = 1
A. solution B. not a solution
Mathematics
Determine whether the function is even, odd, or neither.f(x) = 0.72x2 + 
+ 1
A. Odd B. Neither C. Even
Mathematics