13,000.......................hope it helps!
Answer:
122°
Step-by-step explanation:
The formula for finding the sum of all angles in a polygon is:
(n-2) * 180°
n is the number of angles
Here n = 7, so the sum of all angles is
(7-2) * 180° = 900°
x = 900 - 128 - 130 - 120 - 115 - 145 - 140 = 122°
Make me the brainliest ;)
Answer:

Step-by-step explanation:
<u>Factored Form Of Polynomials
</u>
If we know the roots of a polynomial as

the polynomial can be expressed in factored form as

We are given two of the three roots of the polynomial:


The other root must be the conjugate of the complex root:

Recall the product of two complex conjugate numbers is

The required polynomial is
![P(x)=a\left[ x-(1-3i)\right ]\left[ x-(1+3i)\right ](x-2)](https://tex.z-dn.net/?f=P%28x%29%3Da%5Cleft%5B%20x-%281-3i%29%5Cright%20%5D%5Cleft%5B%20x-%281%2B3i%29%5Cright%20%5D%28x-2%29)

This is the factored form of the polynomial where only real numbers appear
We need to find the value of a, such as



Thus the value of a is

The expression of the required polynomial is

No association because it’s scattered