18.88 divided by 1.6 is 11.8.
12 hours? If I'm wrong, sorry about that
Answer:
are you allowed to email your teacher about it
that's only if you are doing remote school
The length of the radius would sqrt(1+4), or sqrt(5).
2
The angle would be in Quadrant II and would be arctan ------ , or arctan (-2).
-1
Find this angle using a calculator or table.
Then you end up with -1+2i = sqrt(5) angle arctan(-2). The angle would be + and measured from the + horizontal axis.