Answer:
30
Step-by-step explanation:
s_{n}=\frac{a+l}{2}=n
first term=a
last term=l
number of terms=n
1485=\frac{6+93}{2}n
99 n=1485×2=2970
n=2970/99=270/9=30
number of terms=30
Answer:
1
Step-by-step explanation:
If you add them all together (7+4+7=18) the answer would be C.
The probability that the aircraft is overloaded is 0.6141; since this is a greater than 50% chance, the pilot should either reduce the number of passengers on the plane or require them to reduce their baggage.
The z-score for this is given by
z = (X-μ)/σ = (169-180.2)/38 = -11.2/38 = -0.29.
Using a z-table (http://www.z-table.com) we see that the probability of weights being less than this (the area to the left of this score) is 0.3859; to find the probability that the weight is greater than this (to the right), we subtract from 1:
1-0.3859 = 0.6141.
Original price×(1-discount price)=new price or sale price so
Put x in original price...x(1-45/100)=550
So the original price is 1000
