-48/x=2 somebody tell me tomorrow is my test

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3. find the radius of circle p.4. find y.

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

In trapezoid abcd, ac is a diagonal and ∠abc≅∠acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.