U= {1, 2, 3, 4, 5, 6, 7, 8, 9} A = {1,6,7,8,9)
B = {1,3,4,7,9)
C = {4, 5, 6,7)
Find CU (BnA)'.
Write your answer in roster form or as Ø

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

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Your company will replace the asphalt roofs on all the buildings at the factory complex shown below. the buildings have flat roofs. you charge according to the total roof area. what is this area, in square yards?