Determine whether the series 1/3 + 1/9 + 1/27 + ... is convergent or divergent.

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

Carl's candies has determined that a candy bar measuring 3 inches long has a z-score of +1 and a candy bar measuring 3.75 inches long has a z-score of +2. what is the standard deviation of the length of candy bars produced at carl's candies?

Given: prst square pmkd is a square pr = a, pd = a find the area of pmct.