Question

What is true about the complex number -5 - 5i?
Check all that apply.

A. The modulus is 5.
B. It lies in quadrant 3.
C. It lies in quadrant 2.
D. The modulus is 5 square root of 2.

Answer 1

\[modulus = \sqrt{a^2+b^2}\]

Answer 2

Left and down. What quadrant is that?

Answer 3

3?

Answer 4

yep

Answer 5

So only B is the right answer

Answer 6

nope

Answer 7

thre is one more answer

Answer 8

What's the modulus?

Answer 9

modulus = square root of a^2+b^2

Answer 10

OOOHHHH i see yeah, ur right

Answer 11

no modulus is not 5

Answer 12

3rd quadrant
-5=x
-5i=y

(x,y)
-5 on x axes
-5 on y axis

Answer 13

modulus is the square root of (-5²+-5²) which is root 50

Answer 14

root 50 = 5root 2

B and D are correct

Answer 15

sorry for so many posts, had to figure it out in my head since i ran out of paper

Answer 16

I thought the purpose of this site is the help with math problem by giving pointers instead of just solving them.

Answer 17

I already figured it out by following modulus = square root of a^2+b^2 its just clarification no need to be sensitive..

Answer 18

okay

-5²+-5²= root 50
root 50= root 25 x root 2
root 25=5
5 root 2

Answer 19

if there is anything else not explained, let me know

Answer 20

Thanks