Find the product and explain the process and reasoning step by step

$0.79 * 3.7 =

Answer = √18

step-by-step explanation:

the absolute value of a complex number is its distance from zero on graph. the formula for absolute value of a complex number is:

|a+bi| = √ (a^2+b^2)

where a is the real part of the complex number and b is the imaginary part of the complex number.

so for the given number,

a = - 4

b=-√2

putting in the formula:

|-4-√2 i| = √) ^2 + (-√2) ^2)

= √ (16+2)

=√18 ...