The average of four numbers is 638.4. the first 3 are 210, 159.8, and 301.25. find the fourth.

Select the correct answer. joshua likes to read. he read 6 books when he was 6 years old. every year he doubled the number of books he read the previous year. how many total books did he read between the ages of 6 and 10? a. 60 b. 90 c.186 d.187

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

Which of the following is a solution of z^6 = 64i? 2(cos105° + isin105°) 2(cos120° + isin120°) 2(cos135° + isin135°) 8(cos15° + isin15°)