Answer:
8 of them are broken
Step-by-step explanation:
Using Pythagorean theorem:
12^2+17^2=c^2
144+289=c^2
433=c^2
20.81=c
The answer would be three inches per year or B. Hope this helped :)
Train A:
Distance (s) = 420 miles
Time (t) = 3 hours
Speed (v) = distance ÷ time = 420 ÷ 3 = 140 miles/hour
Train B:
Distance (s) = 420 miles
Time (t) = 2.25 hours
Speed (v) = distance ÷ time = 420 ÷ 2.25 = 186.7 miles/hour
Answer:
37.6
Step-by-step explanation:
