Q #1: An irrational number can be written as a ? of two intergers? (difference or ratio)
Q #2: The Pythagoreans discovered irrationals in about the ?th Century BC. (5th, 6th, or 7th)
Q #3: An irrational number written in decimal form will be nonterminating and non-?. (essential or repeating)
A #1: An irrational number cannot be written as a ratio of two integers; therefore, the answer is neither difference nor ratio.
A #2: The Pythagoreans discovered irrationals in the 6th Century BC.
A #3: An irrational number written in decimal form will be nonterminating and non-repeating.