Answer: We have to find the volume of a sphere, provided its radius:
The formula for sphere volume is:
Therefore now we can find the volume, because we have the value of the Radius of the sphere, and we do it next.!
Simplification gives:
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.
Answer:
a=4, b = -2
Step-by-step explanation:
Use elimination: subtract two equations. you get -6b = 12, so b = -2. Substitute this into the first equation and get a -8 = -4, so a = 4
No because the x and y axis are not suppose to be the same
