Answer with Step-by-step explanation:
For any complex number x+iy the polar form is represented as

where

Part a) x+iy = -1+i
Thus 
Thus using De-Morvier's theorem

Part 2) x+iy = 1+3i
Thus 
Thus using De-Morvier's theorem

The answer to part A is: 944,697,600 km3.
The answer to part B is: 39,362,400 km3.
Hope this helps!
(wrong answer)
Answer:
<h2><u>16840.8</u></h2>
Step-by-step explanation:
In mathematics, the discount is a type of reduction in the cost price of a product. Generally, the discount refers to the condition where the selling price of the product is less than the cost price of the product. The discount can be calculated by taking the difference between the cost price and the selling price. Thus, the formula to determine the discount is given as:
Discount = Cost price – Selling Price
<h3>Hope it is helpful...</h3>
First find slope
5-10/-1-0= 5
find y-intercept
10=5(0)+B
b=-10
equation: y=5x-10
0.3 is 3/10, (which is already simplified) because .3 is out of 1. Which means that that 1 is 10. Which is 3/10.