Answer:
Step 1 Divide all terms by a (the coefficient of x2).
Step 2 Move the number term (c/a) to the right side of the equation.
Step 3 Complete the square on the left side of the equation and balance this by adding the same value to the right side of the equation.
Step-by-step explanation:
hope i helped
It's difficult to make out, but I think the task is to expand

Write the number in polar form first:

By DeMoivre's theorem, you have

and converting back to Cartesian form, this number is equivalent to
11% not 100% sure Bc I calculated but hope it helped!
Answer:
40
Step-by-step explanation:
The mean of the set of numbers that are given in this situation regarding the population will be 1809.33.
<h3>How to solve the mean</h3>
The mean of the numbers will be:
= (1,585 + 1,690 + 1,735 + 1,935 + 2,021 + 1,890) / 6
= 1809.33
The median of the numbers will be:
= (1735 + 1890) / 2
= 1812.50
Also, from the complete question, the first quartile will be 1690 and the third quartile is 1935.
Learn more about mean on:
brainly.com/question/20118982