I think it’s the second one because The formula would be
x=
2a
−b±
b
2
−4ac
Answer:30
Step-by-step explanation:
45-12=33 nearest tenth is 30
Answer: 3.84
Step-by-step explanation:
If you time 6 by 0.8 you get 4.8 then you times 4.8 by 0.8 you get 3.84
Hope this helps :)
What you could do it is. Start adding numbers and once you get close to
6 numbers See if you are close to 51 and switch around the numbers to make it equal 51 hope this helps