Identify the pairs of complementary or supplementary angles, as indicated.Supplementary
A. ?AOC & ?AOD; ?AOD & ?DOB; ?DOB & ?COB; ?COB & ?AOC
B. ?AOD & ?COB; ?AOC & ?DOB
C. ?AOC & ?AOD; ?AOD & ?DOB
D. ?COB & ?BOD; ?BOD & ?AOD
Answer: A
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A manufacturing process resulted in a batch of 10 K resistors. The mean resistance values was 10 Kê with a standard deviation of 500 ê.
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Find the indicated rate.Mara can type 1240 words in 
hour (40 minutes). How many words per minute can she type?
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Translate to a proportion and solve. 81 is 135% of what?
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