7x+2 I'm not sure what solution it is though sorry
Answer:
- 4:5
- 16:20
- 32:40
Step-by-step explanation:
- 8 ÷ 2 = 4, 10 ÷ 2 = 5; put them together: 4:5
- 8 × 2 = 16, 10 × 2 = 20; put them together: 16:20
- 8 × 4 = 32, 10 × 4 = 40; put them together: 32:40
I hope this helps!
Recall that

So we have

So either
.
Since
, we expect
, so we take the negative square root. Then

This then means we have

M=c-b divided by a is the correct answer