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In triangle ABC, if median AM has length 60, and median BN has length 56. What is the length of AG? (G is point of intersection of medians)? Calculate the molar ratio of formic acid (HCOOH)/sodium formate (HCOONa) to prepare a pH-5.50 buffer solution.? Calculus velocity? If m1>m2 and m2 is 12 kg and the system is accelerating at 4.3 m/s/s, what is the mass of m1? Modern Algebra: Let sigma = (i1 i2 ... ir) be a cycle in Sn and tau be in Sn. Prove that tausigmatau^-1 = (tau(i1) tau(i2) ... tau(ir)).?