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OpenStudy (anonymous):
Lines AN and CT are perpendicular. If m angle AFT = 3x + 21 and m angle CFN = y + 45, which is the value of x + y?
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OpenStudy (anonymous):
OpenStudy (anonymous):
I somehow came up with 69. What am I doing wrong? Or is it right>
OpenStudy (anonymous):
i got 68, they are all right angles which means y+45 = 90, y=45 3x+21=90, x=23 45 +23 = 68
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