The error is that -2 times -5 is 10 not -10. Then carry on from there because that error meant the rest is wrong as well.
The length of the arc will be given by:
C=θ/360×π×d
thus plugging our values we get:
C =45/360×π×4
C=0.5π~1.5708 miles
Answer:
-14
Step-by-step explanation:

1.If AC = 5x + 2 and BD = 2x + 20, find BD. 5x+2=2x+20 D BD=216)+20=32 ... 5. In the accompanying diagram, ABCD is a rectangle. E is a point on CD: