Answer:
<h2>
12(cos120°+isin120°)</h2>
Step-by-step explanation:
The rectangular form of a complex number is expressed as z = x+iy
where the modulus |r| = 
and the argument 
In polar form, x = 
Given the complex number, 
. To express in trigonometric form, we need to get the modulus and argument of the complex number.
For the argument;
Since tan is negative in the 2nd and 4th quadrant, in the 2nd quadrant,
z = 12(cos120°+isin120°)
This gives the required expression.
She pays 40% so 3292 times by 0.40 gives you 1,316.80 is what she pays.
multiplication property of equality
15.
I had x before the movie.
x - 13.50 = 26.50
Add 13.50 to both sides of the equation:
x = 40
I had $40 before the movie.
16.
The original balance was x.
x - 161.15 = 423.28
Add 161.15 to both sides:
x = 584.43
The previous balance was $584.43
