Answer the question.For f(x) = x2 - 81 and g(x) = 2x + 3, what is the domain of g?f?
A. 
B. 
x ? - 
C. 
x ? - 
D. All real numbers
Answer: D
Mathematics
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Solve the inequality, then graph the solution.6 ? 
? 9
A. 
 ? |  |
B.
 ? |  |
C.
, 
-  |  |
D.
-  |  |
Mathematics
Write as a decimal.20%
A. 0.02 B. 0.2 C. 0.09 D. 2
Mathematics
Solve the equation.
+ 
= 4
A. {2, -2}
B. {0}
C. {
, -2}
D. {-2}
Mathematics
Decide whether the given sequence is finite or infinite.a1= 5, a2= 9; for 3 ? n ? 30, an= 4?an-1+ 5?an-2
A. Finite B. Infinite
Mathematics