a scientific theory
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A hypothesis will be rejected if it fails the necessary testing required for it to become a scientific theory.
Once a hypothesis have been confirmed through numerous experimental tests, it can then become a theory. Theories are much more powerful and expansive in scope than hypotheses. Once a theory has been established, it is the role of scientist to try and disprove a theory rather than to try to reinforce its proof.
if you mean by bar notation..then it is a way of simplifying a specific number after the decimal that is repeated. How you simplify it is that you put a line over the repeating number.For example: 0.3333333333333 would become 0.3 when you put a little line over the 3
Notice the pattern. One digit repeated is always that number over 9. Two digits repeated is always those two digits over 99 and so on. 0.7777 repeated = 7/9 0.5454 repeated = 54/99 0.125 repeated = 125/999
They have become more faster.They have become more aerodynamic.They have become more endurable.They have become more efficient.