Answer:
213 1/3
Step-by-step explanation:
Because I know where you got this question from.
Answer:
44 52 95 76 13 94 83 72 55 81 22 25 64
The mean is: 59.7
65 72 48 63 68 59 68 62 75 79 81 72 64
The mean is: 67.4
Answer: that the solution is true
Step-by-step explanation: if you get something like 10=10 it’s true but if you get like 4= 7 it’s false
ANSWER
![2 \sqrt{2} ( \cos( \frac{7\pi}{4} + i \sin( \frac{7\pi}{4} ) )](https://tex.z-dn.net/?f=2%20%5Csqrt%7B2%7D%20%28%20%5Ccos%28%20%5Cfrac%7B7%5Cpi%7D%7B4%7D%20%20%20%2B%20i%20%20%5Csin%28%20%20%5Cfrac%7B7%5Cpi%7D%7B4%7D%20%29%20%29%20)
EXPLANATION
The complex number shown has coordinates (2,-2)
or
![z = 2 - 2i](https://tex.z-dn.net/?f=z%20%3D%202%20-%202i)
The modulus is
![|z| = \sqrt{ {2}^{2} + {( - 2)}^{2} }](https://tex.z-dn.net/?f=%20%7Cz%7C%20%20%3D%20%20%5Csqrt%7B%20%7B2%7D%5E%7B2%7D%20%20%2B%20%20%7B%28%20-%202%29%7D%5E%7B2%7D%20%7D%20)
![|z| = \sqrt{ 8} = 2 \sqrt{2}](https://tex.z-dn.net/?f=%7Cz%7C%20%20%3D%20%20%5Csqrt%7B%208%7D%20%3D%202%20%5Csqrt%7B2%7D%20)
The argument is
![\theta= \tan^{ - 1} ( \frac{ - 2}{2} )](https://tex.z-dn.net/?f=%20%5Ctheta%3D%20%5Ctan%5E%7B%20-%201%7D%20%28%20%5Cfrac%7B%20-%202%7D%7B2%7D%20%29)
![\theta= \tan^{ - 1} ( -1) = \frac{7\pi}{4}](https://tex.z-dn.net/?f=%20%5Ctheta%3D%20%5Ctan%5E%7B%20-%201%7D%20%28%20-1%29%20%3D%20%20%5Cfrac%7B7%5Cpi%7D%7B4%7D%20)
The polar form is
![2 \sqrt{2} ( \cos( \frac{7\pi}{4} + i \sin( \frac{7\pi}{4} ) )](https://tex.z-dn.net/?f=2%20%5Csqrt%7B2%7D%20%28%20%5Ccos%28%20%5Cfrac%7B7%5Cpi%7D%7B4%7D%20%20%20%2B%20i%20%20%5Csin%28%20%20%5Cfrac%7B7%5Cpi%7D%7B4%7D%20%29%20%29%20)
The first option is correct.