Answer:

Step-by-step explanation:
Hey there!
Standard form is what this equation is in
Standard form is this: 
So order to complete the square, you need to take the
term out of the equation, divide it by two, and then square it
In this case, the
term is 8
We need to divide 8 by 2 ---> 4
Then square 4 ---> 16
So now you should add 16 to both sides

Now you can simplify the LHS

Now you subtract 16 from both sides

So this is as far as you can go since you cannot take the square root of a negative number
That would be 210,000 because 767 rounds to 1000 add that to 209,000 and you get the answer of 210,000
Hope this Helped......
Answer:
A
Step-by-step explanation:
Just cause it makes sense
3 kilometres = 3,000 metres
so the ratio is 500 : 3000
= 1 : 3000/500
= 1: 6