Answer:
1 over 4
Step-by-step explanation:
The answer is B. The angle next to 100 degrees would be 80 as the angles are supplementary. Then you would add 80 + 70 = 150. All the angles in a triangle add to 180, thus making the "x" angle 30 due to 180 - 150.
Hope this helped :))
The number you have given parts for is written
2-4i. to get the complex conjugate just change the sign in the middle. in this case it's 2+4i
The answer is -43. Do you have to solve your work? If you do, I will show you how to.