Perform the indicated operation. Write the result in standard form.7i + (-9 - i)
A. 9 - 6i
B. -9 + 6i
C. 9 - 8i
D. -9 + 8i
Answer: B
Mathematics
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Determine whether the graph of the equation is a circle or an ellipse.9x2 + 90x + 25y2 - 50y + 25 = 0
A. Ellipse B. Circle
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Perform the indicated operation.Find the sum of (8 + 4n7 - 3n5) and 
A. 32n12 B. 13n7 + 6n5 + 13 C. 17n7 + 13n5 + 2 D. 13 + 6n7 + 13n5
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Solve the problem.The graphs below represent the supply and demand for a product at various prices per unit. At what price does supply equal demand?
A. $400 B. $650 C. $177 D. $900
Mathematics
Add the numbers using the number line.-4 + 3
A. -7 B. 7 C. -1 D. 1
Mathematics