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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.
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Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cos of 61.6
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Last week , donnell practiced the piano 3 hours longer than marcus . together, marcus and donnell practiced the piano 11 hours . for how many hours did each young man practiced the piano
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Which equations are equal to 1/4 (8x+56) =20...
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