Perform the indicated operation and simplify. Write the answer in the form a + bi.(12 - 9i) - (1 - 2i)
A. 13 - 7i
B. -13 - 11i
C. 11 - 11i
D. 11 - 7i
Answer: D
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Use the shell method to find the volume of the solid generated by revolving the shaded region about the indicated line.About the line y = 6
A. 432? B. 108? C. 216? D. 36?
Write the system of linear equations that the augmented matrix represents.
A. x = -4 y = -9 z = -10 B. x = -6 y = -1 z = 0 C. x = 4 y = 9 z = 10 D. x = 0 y = 13 z = 14
Write the phrase as a mathematical expression. Use x as the variable.Some number minus 140
A. 140 B. x + 140 C. 140x D. x - 140
Provide an appropriate response.Which one of the following is a description of the graph of the solution set for the system below?x2 + y2 ? 364x2 + 9y2 ? 36
A. The area outside the ellipse (defined by the second equation), including the border. B. The area inside the ellipse (defined by the second equation), including the border. C. The area outside the circle (defined by the first equation), including the border. D. None of these