The NCAA Division 1 Basketball tournament begins each year with a certain number of teams. After each round of games, the losing teams are cut from the tournament, so that cach round has half as many teams playing as the previous round. After 3 rounds 8 teams are left. How many teams started out in the tournament?

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a

Write the summation to estimate the area under the curve y = 1 + x2 from x = -1 to x = 2 using 3 rectangles and right endpoints