Verified Answer :

You can find the absolute value of 8 + 12i using this formula:
|a+bi| = square root of a^2 + b^2
|5+12i| = square root of 8^2 + 12^2 = 14.42

14.42 is the correct answer. I hope this is the answer you're looking for. Have a great day!

Answer: It's absolute value of 8+12i is 14.42.

Step-by-step explanation

Since we have given that

\(z=8+12i\)

Since we have to use the complex conjugate,

As we know that,

\(z\bar{z}=\mid z\mid^2\)

So,

\(z=8-12i\\\\\bar{z}=8-12i\)

Now, we use it in the formula ,

\((8-12i)\times (8-12i)=64+144=208\)

so,

\(\mid z\mid^2=208\\\\\mid z\mid=\sqrt{208}=14.42\)

so, it's absolute value of 8+12i is 14.42.