Answer:
63
Step-by-step explanation:
Because 7(9)=63.
F the diameter is 1/2 mile, that is 0.5 mile, then the radius is 0.25 -half of it!
the angular speed is theta/time, which means
w=theta/time
but another formula for it is Velocity*radians
w=velocity*radians
velocity is 180 mph and radians are (revolution/2 radius), that is:
w=180*(1/2*0.25)
and if we calculate this, we have: w=114.59, which is the correct answer!
Simplified would be 2a+2b
Convert to:
42 4 168
---- x ---- = ------
1 7 7
Answer:
31.4 inches
Step-by-step explanation:
:))
