Hi,
Formula for distance is:
d = v·t, where v is the velocity (a constant value, measured in m/s), and t is time of movement, measured in s, seconds.
1 km = 1000 m, and 1 h = 3600 seconds, therefore:
v = 120 km/h = 120 000 / 3600 m/s = 33.33 m/s, so v = 33,33 m/s.
t = 24 seconds.
d = v·t = 33,33 m/s · 24 s = 100·24/3 = 800 m.
So, building is 800 meters long.
Have you understood the solution ?
Green eyes.
It depends on what x is. For example, if x=4 then the difference between 15 and x would be 11.
Hope this helps!
Answer:
f(4) = 364
Step-by-step explanation:
f(1)=1
f(n)=f(n-1)^2+3
f(2) = f(1)^2 +3 = 1^2 +3 = 4
f(3) = f(2)^2 +3 = 4^2 +3 = 16+3 = 19
f(4) = f(3)^2 +3 = 19^2 +3 = 361+3 = 364
2^5 is the correct answer
First your going to convert 31 1/2 to 63/2 and then add 9 to the 1/3 and convert and you get 28/3 and then you add them both! hope i helped!