If a1=
1 and an=
(an-1)^2 + 2 then find the value of a4

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

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0