If z = 2 + 2i, what is z4? 2 sqrt 2 (cos(pi/4)+ isin(pi/4)
2 sqrt 2 cos(pi)+ isin(pi)
64cos(pi/4)+isin(pi/4)
64cos(pi)+isin(pi)

Solve the equation 3x2 + 19x + 9 = 0 to the nearest tenth.

Problem fathi wants to print out a pdf document that is 48 pages long. to save paper, he decides to print on both sides of each sheet and to print two pages on each side of the sheet. how many sheets of paper will he need?

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.