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19-03-2019
Mathematics

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please help me answer this!!!! 15 points

please help me answer this 15 points class=

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cblue8282 cblue8282

19-03-2019

Answer:

m∡AOB = 40°

Step-by-step explanation:

m∡AOC = m∡AOB + m∡BOC (given by diagram)

108 = 3x + 4 + 8x - 28 (sub.)

132 = 11x (subt. POE and simplify)

x = 12 (div. POE)

m∡AOB = 3x + 4 (sub.)

m∡AOB = 3*12 + 4 (sub.)

m∡AOB = 40° (simplify)

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