Not sure if you wanted answers or explanation on what to do. Ill just do the explanation and if you want the answers just lmk C:
R=1/2 d, and C=pi*2r. So you basically take the given number and plug it into these formulas.
2a + 2b = c
Subtract 2a from both sides
2b = -2a + c
Divide both sides by 2
b = -a + (c/2)
Answer:
Option A
Step-by-step explanation:
Answer: 3 x 16j
Step-by-step explanation:
3(8j +6) +2j
3 x 14j+2j
3 x 16j