Which can be used to find the absolute value of 4 – 7i?

Step-by-step explanation:

By definition, the absolute value of a complex number is the measure of its distance from zero on the complex number plane.

You need to use the following formula:

Then, knowing the formula and given the following complex number:

You can identify that:

Then, the next step is to substitute those values into the formula.

So you get:

Therefore, as you can notice in the procedure above, you can use to find the absolute value of the complex number .

answer is c

step-by-step explanation:

81/12=324/x

x=48

step-by-step explanation:

because it just is