Provide an appropriate response.
This figure shows a circular sheet of metal with diameter of 20 inches, containing 12 equally spaced holes. Determine the distance between the center of the holes. 
A. 1.941 in.
B. 7.244 in.
C. 14.49 in.
D. 3.882 in.
Answer: D
Mathematics
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+ 
A. 7 + 8j B. 15j C. 8 + 7j D. 7 - 8j
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Find the derivative.y = 
A. 
B. 
C. 
D. 
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Round as indicated.459,729 to the nearest ten thousand
A. 500,000 B. 470,000 C. 450,000 D. 460,000
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Simplify.
A. 
B. - 
C. 
D. - 
Mathematics