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  1. M

    Use the Laws of Logarithms to combine the expression. log9(x^2 - 25) - log9(x - 5)?

    Thanks, but that's incorrect.
  2. M

    Adipic acid is used in the manufacture of nylon. The composition of this acid...

    ...is 49.3% C, 6.9% H and 43.8% O? contin...by mass. The approximate molecular weight is 148 amu. What is the molecular formula? (Atomic weights: C = 12.01, H = 1.008, O = 16.00). choices: C5H6O5 C3H5O2 C6H10O4 C7H14O3
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