Decide which property of addition is illustrated.(7 + 5) + 4 = (5 + 7) + 4
A. Distributive
B. Associative
C. Identity
D. Commutative
Answer: D
Mathematics
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The graph of a function f is given. Use the graph to answer the question.What is the domain of f? Write it in interval notation.
A. [0, ?) B. [-10, 10] C. [-8, 11] D. (-?, ?)
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State whether the event is impossible or certain and then give its probability.Randomly choosing a month with more than 34 days.
A. Impossible; 0 B. Certain; 1
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Graph the system of inequalities.y > -2x ? -1
A. 
B. 
C. 
D. 
Mathematics
Solve by completing the square.3x2 - 2x - 4 = 0
A. x = -4, x = 
B. x = 
C. x = 
D. x = 
Mathematics