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T

term

a value in a sequence--the first value in a sequence is the 1st term, the second value is the 2nd term, and so on; a term is also any of the monomials that make up a polynomial

terminating decimals

numbers whose decimal parts do not continue indefinitely but end eventually, these are all rational numbers

tree diagram

a diagram that shows the choices or random outcomes from multiple elements, using branches for each new element

trial

a random action or series of actions

trinomial

a three-term polynomial