You need to divide 313.5/12.5=25.08 so the width is 25.08 feet
Answer: 8.808 kilometers
Step-by-step explanation: have a good night :)
Answer:
∑E(x
) = 13.49167 floors
Step-by-step explanation:
The expected number of floors no one get off = ∑E(x
) where i is from 0 to 23
and E(x
) = ∑x
P(x
)
here x
is the indicator of floor where no one gets off, its value is 0 when atleast one person get off on its floor and 1 when when no one gets off.
Now,
P(x
=1) = (22/23)¹²
P(x
=0) = [1-(22/23)¹²]
Now,
E(x
) = ∑x
P(x
) = 0* [1-(22/23)¹²] + 1*(22/23)¹² =0.586594704
For total number of floors where no one gets off
∑E(x
) = E(x₁)+E(x₂)+E(x₃)........................+E(x₂₃)
∑E(x
) = 23*0.586594704
∑E(x
) = 13.49167 floors
Tyson
P=8.9 x 4hrs=35.60$
8.9 x 8hr=71.20$
8.9 x 12hr=106.80$
8.9 x 16hr=142.40$
4hr. 35.60$
1hr. X dollars
X=35.60$/4hrs
X=8.90$
Jamaal
4hr. 38.00$
1hr. X dollars
X=38.00$/4hrs
X=9.50$