Answer: H
Step-by-step explanation:
Are you sure you wrote it right because it should be -42.99
Show me a picture of the equation
Since you don't provide the coordinates of the point W, I will help you in a general form anyway. In the Figure below is represented the segment that matches this problem. We have two endpoints U and V. So, by using the midpoint formula we may solve this problem:

Therefore:

So we know
but we also must know 
Finally, knowing the points U and W we can find the endpoint V.
First. we use the Pythagorean theorem:

Add the numbers in

start simplifying


So, the leg has a length of 40 mm.
Answer:
1
Step-by-step explanation:
x+y=1 if x=0, then y=1