B is the correct answer. I hope this helps!
1. The complex number 6 + 7i has
- real part 6;
- imaginary part 7.
2. The complex number 10 + 2i has
- real part 10;
- imaginary part 2.
3. When we add two complex numbers, we add real parts and imaginary parts separately:
(6+7i)+(10+2i)=(6+10)+(7+2)i=16+9i.
Answer: 16+9i
It takes 144 minutes to deliver 72 papers
Answer:
[2(x+10)]°+(3x-30)°=180°[vertically opposite angle]
2x+20+3x-30=180°
5x-10=180°
5x=180-10
5x=170
x=170/5
x=34
