Multiply.9ab5(-7ab7 + 10b4 + 9a)
A. -63a2b12 + 90ab9 + 81a2b5
B. -63a2b12 + 90ab9
C. -63ab7 + 90b4 + 81a
D. -63a2b12 + 10b4 + 9a
Answer: A
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Will a paddle wheel with vertical axis at p rotate clockwise, counter clockwise or not rotate?
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Graph the scalar product of the complex number shown in the graph and the given number.-2
a = 1 - 2j
A. 
b = -2(1 - 2j)
B. 
b = -2(1 - 2j)
C. 
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D. 
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A. 
B. 
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D. 
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