between: point B is between points A and C if AB + BC = AC.
biconditional statement: a compound statement that says one sentence is true if and only
if the other sentence is true.
binary number system: the number system that uses only 0's and 1's. The places in the
binary numbers are .......2n.......25 , 24, 23, 22, 21, 20.
binomial: an algebraic expression that is the sum of two terms.
binomial theorem: the theorem that tells how to expand the expression (a + b)n.
bisect: to cut something in half.