Decide whether the composite functions, f ? g and g ? f, are equal to x.f(x) = x3 + 6, g(x) = 
A. No, no
B. Yes, no
C. Yes, yes
D. No, yes
Answer: C
Mathematics
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Find the unknown value.What percent of 50 is 15?
A. 15% B. 88% C. 44% D. 30%
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Sketch the graph of the function.
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Solve and graph. Write the solution in interval notation. 
+ 2 > 4
A. 
B. 
C. 
? 
D. 
? 
Mathematics
Solve the system of equations by graphing. If the system is inconsistent or the equations are dependent, say so. 3x - 2y = 4-6x + 4y = 7
A. {(x, y)|3x - 2y = 4} (dependent equations) B. {(1, 2)} C. {(2, 1)} D. ? (inconsistent system)
Mathematics