If there are n teams in a league and each team plays each other twice in a season, the total number of games is given by the polynomial n 2 - n = N. A women's basketball league plays a total of 30 games. How many teams are in the league?

the 3rd option is right

step-by-step explanation:

42.4

step-by-step explanation:

convert to decimal

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like:

answer: your answer is c

step-by-step explanation: