Friday
July 25, 2014

Homework Help: Pre-Algebra

Posted by TiffanyJ on Tuesday, January 18, 2011 at 9:07pm.

Find each product or Quotient. Express using exponents.
1. The quotient of a to the 8th power and a to the 8th power? a
2. The quotient of -x to the 5th power and -x? -x to the 4th power
3. (15/5)(n to the 9th power/ n)? 3n go the 10th power

Neutral water has a pH of 7. Each one-unit decrease i the pH means that the solution is 10 times more acidic. How much more acidic vinegar is than baking soda if vinegar has a ph of 3 and baking soda has a ph of 9? I think the answer is 10 to the 6th power but I don't know how to write out my work.

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