Simplify. Write your answers in the form of a+bi, where a and b are real numbers.
A. 
B. 
+ 
i
C. 
i
D. 
- 
i
Answer: B
Mathematics
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Sketch the graph.The electromotive force for an electric circuit with a simplified generator is 
where t is the time in seconds. Graph the function for 
A. 
B. 
C. 
D. 
Mathematics
Place parentheses, if needed, to turn this into a true statement.9 - 8 - 7 - 1 = -5
A. (9 - 8) - 7 - 1 = -5 B. No parentheses needed C. 9 - (8 - 7) - 1 = -5 D. 9 - 8 - (7 - 1) = -5
Mathematics
Solve the system by elimination.x + 7y = 75x - 4y = -4
A. {(0, 0)} B. {(1, 0)} C. {(1, 1)} D. {(0, 1)}
Mathematics
Find the area.
A. 88 cm2 B. 124 cm2 C. 93 cm2 D. 84 cm2
Mathematics