## k.rene.s 2 years ago What is the absolute value of the number? 3 + i

1. myininaya

$|x+yi|=\sqrt{x^2+y^2}$

2. k.rene.s

So it's 4?

3. myininaya

You have |3+1i|. So Replace x with 3 and y with 1, then evaluate $\sqrt{3^2+1^2}$

4. k.rene.s

when I solve I get 3.16. but my choices are: square root 10 4 8 square root 3

5. k.rene.s

so it would be square root of 10? Thanks :)

6. myininaya

Yes nine plus one is ten.