Answer:
I THINK 20 mm
Step-by-step explanation:
Answer:
y=− x^2 /4-4
Step-by-step explanation:
We have a right angled triangle here so we can use trigonometry. Let the distance between Amanda and the helicopter be x , then:-
cos 60 = x / 4000
x = 4000 * cos 60
= 4000 * 1/2
= 2000 feet Answer
-a+4b+2c=8
-2+4b+2c=8
3a+b-4c=9 b=-1
3a-1-4c=9