Graph the system of inequalities.
+ 
? 1
+ 
? 1
A. 
B. 
C. 
D. 
Answer: C
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Solve the application problem.Mari works in sales. Her annual income is $37,000 plus 12% commission of her sales. What are the independent and dependent variables in this relation? Is the relation a function?
A. independent: sales, dependent: annual income; yes B. independent: annual income, dependent: sales; yes C. independent: sales, dependent: annual income; no D. independent: annual income, dependent: sales; no
Divide. Simplify, if possible.
÷ 
A. 
B. 
C. 4
D. 
Find the requested function value of ?.If sin ? = 0.7857, find sec ?.
A. 0.7873 B. 0.6186 C. 1.617 D. 1.270
Provide an appropriate response.The graph of a quadratic function 
is shown in the standard viewing window, without x-axis tick marks. Which one of the following sets could possibly be the solution set for f(x) = 0?
A. {-2, 4} B. {-4, 2} C. {-2, -4} D. {2, 4}